{"title":"Aeration","description":"\u003cp\u003eAeration gear moves air into the water and keeps the surface active, which is how oxygen actually enters an aquarium. This page holds air pumps, air stones and diffusers, control valves and airline parts from Marina, Fluval and Aquatop.\u003c\/p\u003e\u003ch2\u003eWhat to look at\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003ePump output relative to tank volume and depth, since a deeper tank needs a pump that can push against more water.\u003c\/li\u003e\n\u003cli\u003eNumber of outlets, and whether gang valves are needed to split one line.\u003c\/li\u003e\n\u003cli\u003eStone type: fine bubbles for a soft column, coarser bubbles for stronger surface movement.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eAir stones are commonly paired with sponge filters, breeding boxes and airline tubing.\u003c\/p\u003e\u003cp\u003eAir-driven breeding boxes are listed under \u003ca href=\"\/collections\/breeders\"\u003eBreeders\u003c\/a\u003e.\u003c\/p\u003e","products":[{"product_id":"tetra-air-pump-available-in-multiple-sizes","title":"Tetra Air Pump (Available in Multiple Sizes)","description":"\u003ch6\u003eDescription\u003c\/h6\u003e\r   \u003cp\u003eMinimal noise, maximum air flow. The Tetra Air Pump’s dome shape actually flattens sound wave frequencies. In addition, each model features sound-dampening chambers designed specifically for that model. And the air pump's rubber feet and suspended motor prevent sound waves from reflecting off surfaces such as tables and shelves.\u003c\/p\u003e\r   \u003cp\u003e\u003cstrong\u003eTetra Air Pumps Help Keep Your Tank Quiet\u003c\/strong\u003e\u003cbr\u003eTetra Air Pumps keep your aquarium oxygen levels high, helping keep your fish healthy. And with seven different sized pumps, there is sure to be one that is perfect for your aquarium. This line of air pumps has a unique dome shape and rubber feet. This flattens sound wave frequencies and helps prevent them from reflecting off of surfaces such as tables and shelves, allowing your pump to produce minimal noise. Tetra Air Pumps can be used in deep tanks (up to 8 feet deep), and have enough strength to power long decorator air stones, multiple air stones in one or more tanks, and protein skimmers for salt water aquariums. Every Tetra pump comes with a warranty, see product label for details.\u003c\/p\u003e\r   \u003cp\u003e\u003cstrong\u003ePumps Produce a More Oxygenated Aquarium\u003c\/strong\u003e\u003cbr\u003eTetra’s air pumps will keep both you and your underwater friends happy. The pumps provide oxygen, which is good for your fish and tank, and also provide water movement. Combining these two benefits will lead to better water conditions overall. The underwater bubbles produced by the machine also add a mesmerizing touch enhancing the look of your aquarium. These pumps are the most powerful line that Tetra offers, ensuring that you are getting the best quality pump available.\u003cbr\u003e\u003c\/p\u003e\r   \u003cp\u003e \u003c\/p\u003e\r   \u003ch6\u003eSpecifications\u003c\/h6\u003e\r   \u003ctable id=\"table\"\u003e\r     \u003ctbody\u003e\r       \u003ctr\u003e\r         \u003cth\u003e\u003cu\u003e\u003cb\u003eModel\u003c\/b\u003e\u003c\/u\u003e\u003c\/th\u003e\r         \u003cth\u003e\u003cu\u003e\u003cb\u003eAir Flow\u003c\/b\u003e\u003c\/u\u003e\u003c\/th\u003e\r       \u003c\/tr\u003e\r       \u003ctr\u003e\r         \u003ctd\u003eTetra Air Pump 2-15 Gallon\u003c\/td\u003e\r         \u003ctd\u003e0.5 L\/min\u003c\/td\u003e\r       \u003c\/tr\u003e\r       \u003ctr\u003e\r         \u003ctd\u003eTetra Air Pump 10-30 Gallon\u003c\/td\u003e\r         \u003ctd\u003e1 L\/min\u003c\/td\u003e\r       \u003c\/tr\u003e\r       \u003ctr\u003e\r         \u003ctd\u003eTetra Air Pump 20-40 Gallon\u003c\/td\u003e\r         \u003ctd\u003e1.3 L\/min\u003c\/td\u003e\r       \u003c\/tr\u003e\r       \u003ctr\u003e\r         \u003ctd\u003eTetra Air Pump 30-60 Gallon\u003c\/td\u003e\r         \u003ctd\u003e2.6 L\/min (\"T\"-ed)\u003c\/td\u003e\r       \u003c\/tr\u003e\r     \u003c\/tbody\u003e\r   \u003c\/table\u003e","brand":"Tetra","offers":[{"title":"2-15 Gallons","offer_id":44024813420744,"sku":"15546","price":20.99,"currency_code":"CAD","in_stock":true},{"title":"10-30 Gallons","offer_id":44024813453512,"sku":"15547","price":37.99,"currency_code":"CAD","in_stock":true},{"title":"20-40 Gallons","offer_id":44024813486280,"sku":"15548","price":49.99,"currency_code":"CAD","in_stock":true},{"title":"30-60 Gallons","offer_id":44024813519048,"sku":"15549","price":42.99,"currency_code":"CAD","in_stock":true},{"title":"60-100 Gallons","offer_id":44085371306184,"sku":"15550","price":85.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/9724\/2568\/files\/s100038288.png?v=1723569823"},{"product_id":"fluval-2-way-air-control-valve","title":"Fluval 2-Way Air Control Valve","description":"\u003cp\u003eThe Fluval two-way air control valve splits and adjusts the air from a single pump so you can feed two lines and fine-tune each one.\u003c\/p\u003e\u003ch2\u003eKey features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eSplits one pump output into two controllable lines\u003c\/li\u003e\n\u003cli\u003eIndividual dials to balance airstones or sponge filters\u003c\/li\u003e\n\u003cli\u003eFits standard 4 mm airline\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eLocal pickup at our Lethbridge store. \u003ca href=\"\/collections\/air-circulation\"\u003eBrowse air and circulation\u003c\/a\u003e.\u003c\/p\u003e","brand":"Hagen","offers":[{"title":"Default Title","offer_id":44024941347016,"sku":"14522","price":2.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/9724\/2568\/files\/s100006240.jpg?v=1723583515"},{"product_id":"fluval-air-control-valve","title":"Fluval Air Control Valve","description":"\u003cp\u003eThe Fluval air control valve lets you fine-tune the airflow on a line, dialling a sponge filter or airstone up or down without changing the pump.\u003c\/p\u003e\u003ch2\u003eKey features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eAdjusts air on a single line\u003c\/li\u003e\n\u003cli\u003eFits standard 4 mm airline tubing\u003c\/li\u003e\n\u003cli\u003eUseful for tuning sponge filters and airstones\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eLocal pickup at our Lethbridge store. \u003ca href=\"\/collections\/air-circulation\"\u003eBrowse air and circulation\u003c\/a\u003e.\u003c\/p\u003e","brand":"Hagen","offers":[{"title":"Default Title","offer_id":44024944099528,"sku":"14475","price":2.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/9724\/2568\/files\/FluAirConVal.jpg?v=1726255998"},{"product_id":"fluval-airline-tubing-3m-black","title":"Fluval Airline Tubing, Black","description":"\u003cp\u003eFluval airline tubing in black, a discreet 3 m hose for running an air pump to a sponge filter, airstone or CO2 accessory.\u003c\/p\u003e\u003ch2\u003eKey features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e3 m of flexible black airline\u003c\/li\u003e\n\u003cli\u003eStandard bore fits common air pumps and valves\u003c\/li\u003e\n\u003cli\u003eBlack blends into the background of the tank\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eLocal pickup at our Lethbridge store. \u003ca href=\"\/collections\/air-circulation\"\u003eBrowse air and circulation\u003c\/a\u003e.\u003c\/p\u003e","brand":"Hagen","offers":[{"title":"3m","offer_id":44069105500360,"sku":"14473","price":7.99,"currency_code":"CAD","in_stock":true},{"title":"6m","offer_id":44069105533128,"sku":"14474","price":11.99,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/9724\/2568\/files\/fluval-fluval-black-max-airline-tubing-28846676901990.webp?v=1726781719"},{"product_id":"ma-airline-tubing-3m","title":"Marina Airline Tubing, 3 m","description":"\u003cp\u003eThree metres of flexible Marina airline tubing for running an air pump to an airstone, sponge filter or ornament.\u003c\/p\u003e\u003ch2\u003eKey features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e3 m length with a standard 4 mm bore\u003c\/li\u003e\n\u003cli\u003eFlexible and clear, easy to route and trim\u003c\/li\u003e\n\u003cli\u003eWorks with standard air pumps and accessories\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eLocal pickup at our Lethbridge store. \u003ca href=\"\/collections\/air-circulation\"\u003eBrowse air and circulation\u003c\/a\u003e.\u003c\/p\u003e","brand":"Hagen","offers":[{"title":"Default Title","offer_id":44024969887944,"sku":"14175","price":5.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/9724\/2568\/files\/Marina-A1123-Airline-Tubing-3m-10feet-5A-International.jpg?v=1749577313"},{"product_id":"ma-airline-tubing-6m","title":"Marina Airline Tubing, 6 m","description":"\u003cp\u003eFlexible Marina airline tubing in a generous 6 m (about 20 ft) length, the standard hose for connecting air pumps to airstones, sponge filters and CO2 gear.\u003c\/p\u003e\n\u003ch2\u003eKey features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e6 m (about 20 ft) of standard-diameter airline\u003c\/li\u003e\n\u003cli\u003eFits common air pumps, valves, airstones and sponge filters\u003c\/li\u003e\n\u003cli\u003eStays flexible so it bends around the tank without kinking\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePair it with a check valve so water cannot siphon back into the pump. More \u003ca href=\"\/collections\/aeration\"\u003eaeration supplies\u003c\/a\u003e. Available for local pickup at our Lethbridge store.\u003c\/p\u003e","brand":"Hagen","offers":[{"title":"Default Title","offer_id":44024969953480,"sku":"14173","price":9.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/9724\/2568\/files\/Marina-A1124-Airline-Tubing-6m-20feet-5A-International.jpg?v=1749584530"},{"product_id":"ma-airstone-cylindrical-2-84cm-4pcs-v","title":"Marina Cylindrical Airstone, 2.84 cm, 4 Pack","description":"\u003cp\u003eA four pack of small cylindrical Marina airstones that break pump air into a fine stream of bubbles for aeration or a decorative curtain.\u003c\/p\u003e\u003ch2\u003eKey features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eFour airstones, each about 2.84 cm\u003c\/li\u003e\n\u003cli\u003eProduce fine bubbles from a standard air pump\u003c\/li\u003e\n\u003cli\u003eHandy spares, since stones clog with scale over time\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eLocal pickup at our Lethbridge store. \u003ca href=\"\/collections\/air-circulation\"\u003eBrowse air and circulation\u003c\/a\u003e.\u003c\/p\u003e","brand":"Hagen","offers":[{"title":"Default Title","offer_id":44024970510536,"sku":"14171","price":3.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/9724\/2568\/files\/Marina-A962-4-Air-Stones-Cylinder-6F-International.jpg?v=1749577412"},{"product_id":"ma-longstone-airstone-6in-v","title":"Marina Longstone Airstone, 6 in","description":"\u003cp\u003eThe Marina air stone is ideal for adding accents in any aquarium the air stone diffuses air, creating water movement. The air stone also increases surface agitation, accelerates oxygen replenishment and helps release carbon dioxide build-up.\u003c\/p\u003e\n\u003cp\u003eSimply connect the air stone to your airline tubing and place it in the desired location. Rectangular shape.      \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eSize \u003c\/b\u003e: 15 cm (6 in) diameter\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e","brand":"Hagen","offers":[{"title":"Default Title","offer_id":44024981618888,"sku":"14100","price":4.99,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/9724\/2568\/files\/Marina-A972-Air-Stone-Rectangular-15cm-6in-6F-International.jpg?v=1749580311"},{"product_id":"ma-longstone-airstone-4in-v","title":"Marina Longstone Airstone, 4 in","description":"\u003cp\u003eThe Marina air stone is ideal for adding accents in any aquarium the air stone diffuses air, creating water movement. The air stone also increases surface agitation, accelerates oxygen replenishment and helps release carbon dioxide build-up.\u003c\/p\u003e\n\u003cp\u003eSimply connect the air stone to your airline tubing and place it in the desired location. Rectangular shape.      \u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eSize\u003c\/b\u003e : 10 cm (4 in) diameter\u003c\/p\u003e","brand":"Hagen","offers":[{"title":"Default Title","offer_id":44024985977032,"sku":"14096","price":3.69,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/9724\/2568\/files\/Marina-A970-Air-Stone-Rectangular-10cm-4in-6F-International.jpg?v=1749580423"},{"product_id":"ma-plastic-control-valve","title":"Marina Plastic Air Control Valve","description":"\u003cp\u003eA single plastic air control valve that fits inline on standard airline tubing, letting you dial airflow up or down to an airstone, sponge filter or air-driven ornament.\u003c\/p\u003e\n\u003ch2\u003eKey features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eFine-tunes airflow on a single air line\u003c\/li\u003e\n\u003cli\u003eFits standard-diameter airline tubing\u003c\/li\u003e\n\u003cli\u003eAn inexpensive fix for an airstone running too hard\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor splitting one pump across several lines, choose a gang valve instead. More \u003ca href=\"\/collections\/aeration\"\u003eaeration supplies\u003c\/a\u003e. Available for local pickup at our Lethbridge store.\u003c\/p\u003e","brand":"Hagen","offers":[{"title":"Default Title","offer_id":44024986534088,"sku":"14084","price":1.29,"currency_code":"CAD","in_stock":true}]},{"product_id":"ma-plastic-2-way-control-valve","title":"Marina Plastic 2-Way Air Control Valve","description":"\u003cp\u003eA two-way plastic gang valve that splits one air pump across two air lines and lets you adjust the flow to each one on its own.\u003c\/p\u003e\n\u003ch2\u003eKey features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eRuns two air outlets from a single pump\u003c\/li\u003e\n\u003cli\u003eIndependent control on each line\u003c\/li\u003e\n\u003cli\u003eFits standard airline tubing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eChoose the two-way when one pump has to feed two airstones or sponge filters; for a single line the basic control valve is all you need. More \u003ca href=\"\/collections\/aeration\"\u003eaeration supplies\u003c\/a\u003e. Available for local pickup at our Lethbridge store.\u003c\/p\u003e","brand":"Hagen","offers":[{"title":"Default Title","offer_id":44024986599624,"sku":"14082","price":1.49,"currency_code":"CAD","in_stock":true}]},{"product_id":"ma-plastic-tee-connector","title":"Marina Plastic Tee Connector for Airline","description":"","brand":"Hagen","offers":[{"title":"Default Title","offer_id":44024986796232,"sku":"14079","price":1.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/9724\/2568\/files\/Marina-A1185-Plastic-T-Airline-Connector-6F-International.jpg?v=1749577996"},{"product_id":"marina-200-aeration-kit","title":"Marina 200 Aeration Kit","description":"\u003cp\u003eA complete starting point for aeration — pump, diffusers, tubing and check valves in one box, with nothing left to work out about which part fits which.\u003c\/p\u003e\n\u003ch2\u003eKey features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eEverything matches straight out of the box, since the pump, tubing and diffusers are all standard Marina fittings.\u003c\/li\u003e\n\u003cli\u003eTwo diffusers of different shapes let you compare a point stone against a wider bubble disk in your own tank before you commit.\u003c\/li\u003e\n\u003cli\u003eCheck valves are included, which is the part most people leave out of a first aeration setup and later wish they had.\u003c\/li\u003e\n\u003cli\u003eA tidy way to add aeration to an established tank, or to get a hospital or fry tank running quickly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhat's included\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMarina 200 air pump\u003c\/li\u003e\n\u003cli\u003eMarina air stone\u003c\/li\u003e\n\u003cli\u003eMarina bubble disk\u003c\/li\u003e\n\u003cli\u003eMarina airline tubing\u003c\/li\u003e\n\u003cli\u003eTwo Marina check valves\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCheck valves are directional, so if the air stops after you fit one, it has gone in the wrong way round — turn it and try again. The 200 is one of several outputs in the Marina line; if you are not certain it is the right size for your tank, ask our staff or compare it against the others in \u003ca href=\"\/collections\/aeration\"\u003eAeration\u003c\/a\u003e.\u003c\/p\u003e","brand":"Hagen","offers":[{"title":"Default Title","offer_id":44024991645896,"sku":"14036","price":44.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/9724\/2568\/files\/A833_MA_200AerationKit_PkgF_INT.jpg?v=1749580524"},{"product_id":"marina-battery-air-pump-v","title":"Marina Battery Air Pump","description":"","brand":"Hagen","offers":[{"title":"Default Title","offer_id":44024994529480,"sku":"13989","price":26.99,"currency_code":"CAD","in_stock":true}]},{"product_id":"marina-plastic-check-valve","title":"Marina Plastic Check Valve","description":"\u003cp\u003eA check valve is the cheapest insurance in the hobby: it lets air travel from the pump to the tank, and stops water travelling the other way.\u003c\/p\u003e\n\u003ch2\u003eKey features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eThe one-way action blocks back-siphoning, so a pump that is switched off or that fails cannot let the tank drain itself down the airline and onto the floor.\u003c\/li\u003e\n\u003cli\u003eIt protects the pump as well, since water reaching the diaphragm will finish it.\u003c\/li\u003e\n\u003cli\u003eFits inline on standard airline tubing — cut the line and push a valve onto each cut end.\u003c\/li\u003e\n\u003cli\u003eDirectional by design: if the air stops as soon as you fit it, turn the valve around.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis matters most whenever the pump sits below the water line, which covers anything standing on the floor or inside a cabinet — a common setup, and an easy one to overlook. Fit one per airline, and glance at them occasionally, because they do eventually stick. Tubing, air stones and control valves are all in \u003ca href=\"\/collections\/aeration\"\u003eAeration\u003c\/a\u003e.\u003c\/p\u003e","brand":"Marina","offers":[{"title":"Default Title","offer_id":44025003835592,"sku":"13843","price":6.99,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/9724\/2568\/files\/Marina-A1165-Check-Valve-6F-International.jpg?v=1749577503"},{"product_id":"marina-air-pumps","title":"Marina Air Pumps","description":"\u003cp\u003eThe air pump is the piece that makes everything else on the aeration shelf work: stones, bubble walls, air-driven sponge filters and moving ornaments all run from one.\u003c\/p\u003e\n\u003ch2\u003eKey features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSeveral output sizes are grouped on this listing, from small units for a nano tank up to models intended to drive multiple outlets; the size selector shows the range we carry.\u003c\/li\u003e\n\u003cli\u003eQuiet in normal use, and quieter still if you stand it on something soft rather than directly on a hollow cabinet top.\u003c\/li\u003e\n\u003cli\u003eDrives air stones, bubble disks, sponge filters and air-operated decorations.\u003c\/li\u003e\n\u003cli\u003eAirline tubing is not included, so add tubing and a check valve to the order.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eTwo things are worth knowing before you choose. Aeration works mainly by agitating the water surface, so a pump that keeps the top of the tank moving is doing its job even when the bubble display looks modest. And if the pump ends up below the water line — on the floor, or inside a cabinet — fit a check valve, because a pump that stops without one can let the tank siphon itself down the airline. If you are not sure which output suits you, tell our staff your tank volume and what you want to run, or browse \u003ca href=\"\/collections\/aeration\"\u003eAeration\u003c\/a\u003e for the rest of the parts.\u003c\/p\u003e","brand":"Marina","offers":[{"title":"50","offer_id":44025022808264,"sku":"13483","price":25.99,"currency_code":"CAD","in_stock":false},{"title":"75","offer_id":44025022841032,"sku":"13484","price":26.49,"currency_code":"CAD","in_stock":true},{"title":"100","offer_id":44025022873800,"sku":"13485","price":27.49,"currency_code":"CAD","in_stock":true},{"title":"200","offer_id":44025022906568,"sku":"13486","price":32.99,"currency_code":"CAD","in_stock":true},{"title":"300","offer_id":44025022939336,"sku":"13487","price":36.99,"currency_code":"CAD","in_stock":true},{"title":"Cool","offer_id":44025022972104,"sku":"13488","price":16.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/9724\/2568\/files\/s100067764.jpg?v=1723579085"},{"product_id":"marina-cylindrical-air-stone","title":"Marina Cylindrical Air Stone","description":"\u003cp\u003eA cylindrical air stone spreads its output along its whole length, so it can tuck under a gravel edge or behind an ornament and lift a broad curtain of bubbles instead of one narrow plume.\u003c\/p\u003e\n\u003ch2\u003eKey features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eThe long body diffuses air across a wider footprint than a round stone, which suits tall or narrow tanks well.\u003c\/li\u003e\n\u003cli\u003eFine bubbles keep the surface moving, and it is that surface agitation that drives gas exchange — the bubbles themselves add very little oxygen on the way up.\u003c\/li\u003e\n\u003cli\u003ePush-fits onto standard airline tubing, so it works with the usual aquarium air pumps.\u003c\/li\u003e\n\u003cli\u003eSold in more than one pack size, so it is easy to keep a spare on the shelf.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAir stones are a consumable. Mineral scale and biofilm gradually block the pores, output falls off and the pump has to work harder, so plan on swapping them out from time to time. If your pump sits below the water line, fit a check valve on the airline so water cannot siphon back into it. More diffusers, tubing and pumps are in \u003ca href=\"\/collections\/aeration\"\u003eAeration\u003c\/a\u003e, and staff at the Lethbridge store can help you match one to your pump.\u003c\/p\u003e","brand":"Marina","offers":[{"title":"2 Pack","offer_id":44025151586504,"sku":"10877","price":3.69,"currency_code":"CAD","in_stock":true},{"title":"4 Pack","offer_id":44025151619272,"sku":"10878","price":3.99,"currency_code":"CAD","in_stock":false},{"title":"Single","offer_id":44025151652040,"sku":"10879","price":1.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/9724\/2568\/files\/s100036245.png?v=1723584010"},{"product_id":"marina-deluxe-bubble-disk","title":"Marina Deluxe Bubble Disk","description":"\u003cp\u003eThe Deluxe Bubble Disk lies flat on the substrate and pushes an even column of bubbles straight up, which is the simplest way to get a decorative bubble wall without lining up a row of separate stones.\u003c\/p\u003e\n\u003ch2\u003eKey features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eThe flat disc shape can be buried at the edge of the gravel or hidden behind hardscape, so only the bubbles show.\u003c\/li\u003e\n\u003cli\u003eOutput is spread across the whole disc, giving a steady display rather than a single stream that wanders off to one side.\u003c\/li\u003e\n\u003cli\u003eOffered in several diameters — choose from the size selector, or ask us which one suits your tank footprint.\u003c\/li\u003e\n\u003cli\u003eConnects to ordinary airline tubing from any aquarium air pump.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA wide disc asks for more air than a small stone, so a pump with an adjustable outlet, or a control valve on the line, makes it much easier to set the display where you want it. Like every diffuser it slowly clogs with mineral deposits and eventually needs replacing. Pumps, valves and tubing to go with it are in the rest of the \u003ca href=\"\/collections\/marina\"\u003eMarina\u003c\/a\u003e range.\u003c\/p\u003e","brand":"Marina","offers":[{"title":"7.5 cm","offer_id":44025151488200,"sku":"10874","price":7.99,"currency_code":"CAD","in_stock":true},{"title":"10 cm","offer_id":44025151520968,"sku":"10875","price":8.49,"currency_code":"CAD","in_stock":false},{"title":"12 cm","offer_id":44025151553736,"sku":"10876","price":9.49,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/9724\/2568\/files\/s100036266.png?v=1723584010"},{"product_id":"marina-round-air-stone","title":"Marina Round Air Stone","description":"\u003cp\u003eA small spherical stone is the least fussy way to add gentle circulation to a nano tank, a quarantine bin or a fry tub, where a large diffuser would simply be too much water movement.\u003c\/p\u003e\n\u003ch2\u003eKey features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eThe compact ball shape hides behind a plant or ornament and takes up almost no floor space.\u003c\/li\u003e\n\u003cli\u003eModest air demand, so it runs happily from a small pump or from one branch of a shared manifold.\u003c\/li\u003e\n\u003cli\u003eTwo diameters are offered; the size selector shows what is currently in stock.\u003c\/li\u003e\n\u003cli\u003eFits standard airline tubing, so nothing special is needed to connect it.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWorth knowing: most of the oxygen exchange comes from the ripples the bubbles make when they reach the surface, not from the bubbles dissolving on the way up. Aim for a stone that keeps the top of the water moving rather than the biggest bubble column you can manage. Stones clog with scale and biofilm over time and are meant to be replaced. Pumps, tubing and valves are all in \u003ca href=\"\/collections\/aeration\"\u003eAeration\u003c\/a\u003e.\u003c\/p\u003e","brand":"Marina","offers":[{"title":"2.2 cm","offer_id":44025152864456,"sku":"10858","price":1.99,"currency_code":"CAD","in_stock":true},{"title":"3 cm","offer_id":44025152897224,"sku":"10859","price":2.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/9724\/2568\/files\/s100036263.png?v=1723584045"},{"product_id":"marina-ultra-air-control-valve","title":"Marina Ultra Air Control Valve","description":"\u003cp\u003eOne air pump can drive several devices at once if you split the line, and a control valve is what lets you decide how much air each of them actually receives.\u003c\/p\u003e\n\u003ch2\u003eKey features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSplits a single pump outlet into multiple lines, so one pump can run a sponge filter, an air stone and an air-driven ornament together.\u003c\/li\u003e\n\u003cli\u003eEvery outlet has its own adjuster, which matters because air takes the easiest path — an unregulated split will starve whichever device sits deepest.\u003c\/li\u003e\n\u003cli\u003eAvailable in two, three, four and five way versions; pick the number of outlets from the selector.\u003c\/li\u003e\n\u003cli\u003eHangs on a standard tank rim and suits fresh or salt water.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eClosing outlets down hard raises the back pressure the pump has to work against, so if you find yourself throttling everything right down, a smaller pump is kinder than a big one held back. Fit a check valve on each line as well if the pump sits below the water level. Stones, tubing and pumps to feed it are in \u003ca href=\"\/collections\/aeration\"\u003eAeration\u003c\/a\u003e.\u003c\/p\u003e","brand":"Marina","offers":[{"title":"2-Way","offer_id":44025153388744,"sku":"10846","price":7.49,"currency_code":"CAD","in_stock":true},{"title":"3-Way","offer_id":44025153421512,"sku":"10847","price":8.99,"currency_code":"CAD","in_stock":true},{"title":"4-Way","offer_id":44025153454280,"sku":"10848","price":10.99,"currency_code":"CAD","in_stock":true},{"title":"5-Way","offer_id":44025153487048,"sku":"10849","price":8.49,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/9724\/2568\/files\/s100036235.png?v=1723584059"},{"product_id":"marina-cool-air-stones","title":"Marina Cool Air Stones","description":"\u003cp\u003eThese are shaped novelty diffusers rather than plain grey blocks, meant for tanks where the aeration is part of the decor instead of something to be hidden.\u003c\/p\u003e\n\u003ch2\u003eKey features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMoulded character shapes sit openly on the substrate, which suits children's tanks and themed setups.\u003c\/li\u003e\n\u003cli\u003eWorks as an ordinary diffuser underneath the styling: fine bubbles, gentle circulation and movement at the surface.\u003c\/li\u003e\n\u003cli\u003ePush-fits onto standard airline tubing from any aquarium air pump.\u003c\/li\u003e\n\u003cli\u003eShapes and sizes vary through the year, so the selector shows what we currently have.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eTreat it as a consumable, the same as any other air stone. The pores fill with mineral scale and biofilm over months of use, the bubbles get coarser and fewer, and at that point it is time for a new one. Plainer stones, tubing, control valves and pumps are all grouped in \u003ca href=\"\/collections\/aeration\"\u003eAeration\u003c\/a\u003e.\u003c\/p\u003e","brand":"Marina","offers":[{"title":"Starfish 8.25cm","offer_id":44025153978568,"sku":"10835","price":4.49,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/9724\/2568\/files\/s100016152.jpg?v=1723584068"},{"product_id":"marina-extendable-air-stone","title":"Marina Extendable Air Stone","description":"\u003cp\u003eThis one is a flexible ring rather than a block, and sections join to one another, so you can build a circle of bubbles around a piece of hardscape instead of working with a single stone in a single spot.\u003c\/p\u003e\n\u003ch2\u003eKey features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eThe ring form gives an enclosing curtain of bubbles, which reads very differently in a tank from one central plume.\u003c\/li\u003e\n\u003cli\u003eLinks to further sections when you want a wider circle or a longer run.\u003c\/li\u003e\n\u003cli\u003eTwo diameters are offered; the selector shows which we have.\u003c\/li\u003e\n\u003cli\u003eRuns on ordinary airline tubing from a normal aquarium air pump.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eA long ring has a lot of surface to feed, so check that your pump has the output to fill it evenly before you extend it — our staff can help you match the two. The display is the point here, but the practical benefit is the same as any diffuser: it is the movement at the water surface, not the bubbles themselves, that does the gas exchange. Pumps, tubing and valves are in \u003ca href=\"\/collections\/aeration\"\u003eAeration\u003c\/a\u003e.\u003c\/p\u003e","brand":"Marina","offers":[{"title":"14cm","offer_id":44025154142408,"sku":"10829","price":5.99,"currency_code":"CAD","in_stock":true},{"title":"25cm","offer_id":44025154175176,"sku":"10830","price":7.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/9724\/2568\/files\/s100067798.jpg?v=1723584070"},{"product_id":"marina-cool-clear-airline-tubing","title":"Marina Cool Clear Airline Tubing","description":"\u003cp\u003eAirline tubing is the link between your air pump and everything it drives, and it is one of the cheapest things in the hobby to replace once it starts to stiffen or yellow.\u003c\/p\u003e\n\u003ch2\u003eKey features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eStays supple and holds its round section, so it is less likely to kink behind the tank and choke the air off.\u003c\/li\u003e\n\u003cli\u003eThe clear finish disappears against glass far better than opaque tubing does.\u003c\/li\u003e\n\u003cli\u003eStandard bore, so it fits the usual air pumps, stones, control valves and air-driven sponge filters.\u003c\/li\u003e\n\u003cli\u003eCuts cleanly with scissors, which lets you run exactly the length you need instead of coiling the excess.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eOld tubing hardens and splits at the joints, and that is where most mysterious drops in air output come from. If your pump sits below the water line, put a check valve into the run so that a stopped pump cannot let the tank siphon itself back down the tube. Stones, valves and pumps to pair with it are in \u003ca href=\"\/collections\/aeration\"\u003eAeration\u003c\/a\u003e.\u003c\/p\u003e","brand":"Marina","offers":[{"title":"Default Title","offer_id":44025155616968,"sku":"10817","price":4.99,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/9724\/2568\/files\/s100006496.png?v=1723584125"},{"product_id":"fluval-air-pump-diffuser","title":"Fluval Air Pump Diffuser 2-Pack","description":"\u003cdiv class=\"woocommerce-product-details__short-description\"\u003e\n\u003cp\u003eCompatible with all aquarium air pumps, the Fluval Air Diffuser is easy to install, quiet to operate and offers adjustable flow for customized bubble control, making it an ideal alternative to traditional air stones.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Fluval","offers":[{"title":"Default Title","offer_id":44078656422088,"sku":"14016","price":6.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/9724\/2568\/files\/fluvaldiffuser.jpg?v=1726174553"},{"product_id":"aquatop-breza-air-diffuser","title":"Aquatop Breza Air Diffuser","description":"\u003cp\u003eEasy to use Air Stone. Simply attach to air pump using airline tubing and place in your desired location within your aquarium. May be buried under gravel.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIncreases surface agitation \u0026amp; oxygenation\u003c\/li\u003e\n\u003cli\u003eHelps release carbon dioxide build-up\u003c\/li\u003e\n\u003cli\u003eFits standard airline tubing\u003c\/li\u003e\n\u003cli\u003eFor use in all aquariums\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Aquatop","offers":[{"title":"Default Title","offer_id":44100656758984,"sku":"10045","price":2.19,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/9724\/2568\/files\/Brezaairstone.jpg?v=1726098735"},{"product_id":"aqua-one-airstone-15-cm-6-in","title":"Aqua One Airstone, 15 cm (6 inch)","description":"\u003cp\u003eA standard bar air stone, 15 cm long, that lifts a broad curtain of fine bubbles rather than one narrow plume. The longer the bar, the wider the footprint of moving water it creates, which suits taller or wider tanks.\u003c\/p\u003e\n\u003ch2\u003eKey features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eProvides oxygen and water movement, and assists in releasing carbon dioxide build-up.\u003c\/li\u003e\n\u003cli\u003eReleases a constant stream of fine bubbles that will not disturb your aquatic inhabitants.\u003c\/li\u003e\n\u003cli\u003eEncourages healthy bacteria growth and adds an attractive element to the display.\u003c\/li\u003e\n\u003cli\u003eIntended to be used with an air pump, check valve and airline tubing.\u003c\/li\u003e\n\u003cli\u003eSuitable for coldwater and tropical aquariums.\u003c\/li\u003e\n\u003cli\u003eAqua One item 10140 — Airstone 6 inch 15 cm.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAir stones are a consumable — mineral scale and biofilm slowly close off the pores, output drops and the pump works harder, so plan on replacing them periodically. Aqua One intend these to be run with an air pump, check valve and airline tubing; if the pump sits below the water line, fit the check valve so water cannot siphon back into it. More diffusers, tubing and pumps are in \u003ca href=\"\/collections\/aeration\"\u003eAeration\u003c\/a\u003e, and staff at the Lethbridge store can help you match one to your pump.\u003c\/p\u003e","brand":"Aqua One","offers":[{"title":"Default Title","offer_id":45205182546120,"sku":"24350246","price":4.99,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/9724\/2568\/files\/aqua-one-airstone-15cm.jpg?v=1788466648"},{"product_id":"aqua-one-airstone-30-cm-12-in","title":"Aqua One Airstone, 30 cm (12 inch)","description":"\u003cp\u003eA standard bar air stone, 30 cm long, that lifts a broad curtain of fine bubbles rather than one narrow plume. The longer the bar, the wider the footprint of moving water it creates, which suits taller or wider tanks.\u003c\/p\u003e\n\u003ch2\u003eKey features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eProvides oxygen and water movement, and assists in releasing carbon dioxide build-up.\u003c\/li\u003e\n\u003cli\u003eReleases a constant stream of fine bubbles that will not disturb your aquatic inhabitants.\u003c\/li\u003e\n\u003cli\u003eEncourages healthy bacteria growth and adds an attractive element to the display.\u003c\/li\u003e\n\u003cli\u003eIntended to be used with an air pump, check valve and airline tubing.\u003c\/li\u003e\n\u003cli\u003eSuitable for coldwater and tropical aquariums.\u003c\/li\u003e\n\u003cli\u003eAqua One item 10141 — Airstone 12 inch 30 cm.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAir stones are a consumable — mineral scale and biofilm slowly close off the pores, output drops and the pump works harder, so plan on replacing them periodically. Aqua One intend these to be run with an air pump, check valve and airline tubing; if the pump sits below the water line, fit the check valve so water cannot siphon back into it. More diffusers, tubing and pumps are in \u003ca href=\"\/collections\/aeration\"\u003eAeration\u003c\/a\u003e, and staff at the Lethbridge store can help you match one to your pump.\u003c\/p\u003e","brand":"Aqua One","offers":[{"title":"Default Title","offer_id":45205182578888,"sku":"24350247","price":6.99,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/9724\/2568\/files\/aqua-one-airstone-30cm.jpg?v=1788466648"},{"product_id":"aqua-one-clear-pvc-airline-tubing-2-5-m","title":"Aqua One Clear PVC Airline Tubing, 2.5 m","description":"\u003cp\u003eClear PVC airline in a 2.5 m length, designed to connect air pumps to air stones, disks and other air-driven accessories.\u003c\/p\u003e\n\u003ch2\u003eKey features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eConnects Aqua One air pumps and air stones together.\u003c\/li\u003e\n\u003cli\u003eLow maintenance and easy to replace.\u003c\/li\u003e\n\u003cli\u003eClear PVC, so it disappears against glass and backgrounds.\u003c\/li\u003e\n\u003cli\u003eAqua One item 10403 — Air Line PVC 2.5m Clear.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAirline hardens and yellows with age and can crack at the fittings, so replace it when it stops sitting snugly on a barb. If your pump sits below the water line, fit a check valve so water cannot siphon back into it during a power cut. Air stones, valves and pumps are in \u003ca href=\"\/collections\/aeration\"\u003eAeration\u003c\/a\u003e, and staff at the Lethbridge store can help you match tubing to your setup.\u003c\/p\u003e","brand":"Aqua One","offers":[{"title":"Default Title","offer_id":45205182611656,"sku":"24350304","price":4.99,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/9724\/2568\/files\/aqua-one-airline-tubing-25m.jpg?v=1788466649"},{"product_id":"aqua-one-starfish-airstone-medium-8-5-x-8-5-cm","title":"Aqua One Starfish Airstone, Medium (8.5 x 8.5 cm)","description":"\u003cp\u003eA starfish-shaped air stone, 8.5 x 8.5 cm, that sits on the substrate and releases bubbles around its whole outline — a decorative alternative to a plain bar stone.\u003c\/p\u003e\n\u003ch2\u003eKey features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eProvides oxygen and water movement, and assists in releasing carbon dioxide build-up.\u003c\/li\u003e\n\u003cli\u003eReleases a constant stream of fine bubbles that will not disturb your aquatic inhabitants.\u003c\/li\u003e\n\u003cli\u003eEncourages healthy bacteria growth and adds an attractive element to the display.\u003c\/li\u003e\n\u003cli\u003eIntended to be used with an air pump, check valve and airline tubing.\u003c\/li\u003e\n\u003cli\u003eSuitable for coldwater and tropical aquariums.\u003c\/li\u003e\n\u003cli\u003eAqua One item 10352 — Airstone Star Fish Medium 8.5 cm x 8.5 cm.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAir stones are a consumable — mineral scale and biofilm slowly close off the pores, output drops and the pump works harder, so plan on replacing them periodically. Aqua One intend these to be run with an air pump, check valve and airline tubing; if the pump sits below the water line, fit the check valve so water cannot siphon back into it. More diffusers, tubing and pumps are in \u003ca href=\"\/collections\/aeration\"\u003eAeration\u003c\/a\u003e, and staff at the Lethbridge store can help you match one to your pump.\u003c\/p\u003e","brand":"Aqua One","offers":[{"title":"Default Title","offer_id":45205182677192,"sku":"24351548","price":4.99,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/9724\/2568\/files\/aqua-one-starfish-airstone.jpg?v=1788466383"},{"product_id":"aqua-one-ceramic-airstone-10-x-3-cm","title":"Aqua One Ceramic Airstone, 100 x 30 mm","description":"\u003cp\u003eA ceramic bar air stone measuring 100 x 30 mm. The ceramic body resists clogging better than moulded stone and spreads fine bubbles evenly along its length.\u003c\/p\u003e\n\u003ch2\u003eKey features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eProvides oxygen and water movement, and assists in releasing carbon dioxide build-up.\u003c\/li\u003e\n\u003cli\u003eReleases a constant stream of fine bubbles that will not disturb your aquatic inhabitants.\u003c\/li\u003e\n\u003cli\u003eEncourages healthy bacteria growth and adds an attractive element to the display.\u003c\/li\u003e\n\u003cli\u003eIntended to be used with an air pump, check valve and airline tubing.\u003c\/li\u003e\n\u003cli\u003eSuitable for coldwater and tropical aquariums.\u003c\/li\u003e\n\u003cli\u003eAqua One item 10155 — Airstone Ceramic 100 x 30 mm.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAir stones are a consumable — mineral scale and biofilm slowly close off the pores, output drops and the pump works harder, so plan on replacing them periodically. Aqua One intend these to be run with an air pump, check valve and airline tubing; if the pump sits below the water line, fit the check valve so water cannot siphon back into it. More diffusers, tubing and pumps are in \u003ca href=\"\/collections\/aeration\"\u003eAeration\u003c\/a\u003e, and staff at the Lethbridge store can help you match one to your pump.\u003c\/p\u003e","brand":"Aqua One","offers":[{"title":"Default Title","offer_id":45205182775496,"sku":"24351784","price":11.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/9724\/2568\/files\/aqua-one-ceramic-airstone-100x30mm.jpg?v=1788466850"},{"product_id":"aqua-one-ceramic-airstone-7-x-1-5-cm-2-pack","title":"Aqua One Ceramic Airstone, 70 x 15 mm, 2-Pack","description":"\u003cp\u003eTwo ceramic air stones, each 70 x 15 mm — a useful size for small tanks, sponge filters and breeder boxes, and handy to have a spare on the shelf.\u003c\/p\u003e\n\u003ch2\u003eKey features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eProvides oxygen and water movement, and assists in releasing carbon dioxide build-up.\u003c\/li\u003e\n\u003cli\u003eReleases a constant stream of fine bubbles that will not disturb your aquatic inhabitants.\u003c\/li\u003e\n\u003cli\u003eEncourages healthy bacteria growth and adds an attractive element to the display.\u003c\/li\u003e\n\u003cli\u003eIntended to be used with an air pump, check valve and airline tubing.\u003c\/li\u003e\n\u003cli\u003eSuitable for coldwater and tropical aquariums.\u003c\/li\u003e\n\u003cli\u003eSupplied as a 2-pack.\u003c\/li\u003e\n\u003cli\u003eAqua One item 10159 — Airstone Ceramic 70 x 15 mm 2pk.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAir stones are a consumable — mineral scale and biofilm slowly close off the pores, output drops and the pump works harder, so plan on replacing them periodically. Aqua One intend these to be run with an air pump, check valve and airline tubing; if the pump sits below the water line, fit the check valve so water cannot siphon back into it. More diffusers, tubing and pumps are in \u003ca href=\"\/collections\/aeration\"\u003eAeration\u003c\/a\u003e, and staff at the Lethbridge store can help you match one to your pump.\u003c\/p\u003e","brand":"Aqua One","offers":[{"title":"Default Title","offer_id":45205182808264,"sku":"24351788","price":9.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/9724\/2568\/files\/aqua-one-ceramic-airstone-70x15mm-2pk.jpg?v=1788466850"},{"product_id":"aqua-one-airstone-2-5-cm-1-in-2-pack","title":"Aqua One Airstone, 2.5 cm (1 inch), 2-Pack","description":"\u003cp\u003eA pair of small 2.5 cm air stones — the size most often used in breeder boxes, quarantine tubs and sponge filters, where you only want a modest stream of bubbles.\u003c\/p\u003e\n\u003ch2\u003eKey features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eProvides oxygen and water movement, and assists in releasing carbon dioxide build-up.\u003c\/li\u003e\n\u003cli\u003eReleases a constant stream of fine bubbles that will not disturb your aquatic inhabitants.\u003c\/li\u003e\n\u003cli\u003eEncourages healthy bacteria growth and adds an attractive element to the display.\u003c\/li\u003e\n\u003cli\u003eIntended to be used with an air pump, check valve and airline tubing.\u003c\/li\u003e\n\u003cli\u003eSuitable for coldwater and tropical aquariums.\u003c\/li\u003e\n\u003cli\u003eSupplied as a 2-pack.\u003c\/li\u003e\n\u003cli\u003eAqua One item 10144, listed by the supplier as Airstone 2.5 cm (1 inch) 2pk.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAir stones are a consumable — mineral scale and biofilm slowly close off the pores, output drops and the pump works harder, so plan on replacing them periodically. Aqua One intend these to be run with an air pump, check valve and airline tubing; if the pump sits below the water line, fit the check valve so water cannot siphon back into it. More diffusers, tubing and pumps are in \u003ca href=\"\/collections\/aeration\"\u003eAeration\u003c\/a\u003e, and staff at the Lethbridge store can help you match one to your pump.\u003c\/p\u003e","brand":"Aqua One","offers":[{"title":"Default Title","offer_id":45205182841032,"sku":"24351790","price":3.99,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/9724\/2568\/files\/aqua-one-airstone-25mm-2pk.jpg?v=1788466648"},{"product_id":"aqua-one-beauty-round-pvc-encased-airstone-7-5-cm","title":"Aqua One PVC-Encased Beauty Round Airstone, 7.5 cm","description":"\u003cp\u003eA round air stone set in a PVC housing, 7.5 cm across. The casing protects the stone, adds weight so it stays put, and directs the bubbles upward in a defined ring.\u003c\/p\u003e\n\u003ch2\u003eKey features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eProvides oxygen and water movement, and assists in releasing carbon dioxide build-up.\u003c\/li\u003e\n\u003cli\u003eReleases a constant stream of fine bubbles that will not disturb your aquatic inhabitants.\u003c\/li\u003e\n\u003cli\u003eEncourages healthy bacteria growth and adds an attractive element to the display.\u003c\/li\u003e\n\u003cli\u003eIntended to be used with an air pump, check valve and airline tubing.\u003c\/li\u003e\n\u003cli\u003eSuitable for coldwater and tropical aquariums.\u003c\/li\u003e\n\u003cli\u003ePVC housing adds weight and protects the diffuser.\u003c\/li\u003e\n\u003cli\u003eAqua One item 10149 — Airstone PVC Encased Beauty Round 7.5 cm.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAir stones are a consumable — mineral scale and biofilm slowly close off the pores, output drops and the pump works harder, so plan on replacing them periodically. Aqua One intend these to be run with an air pump, check valve and airline tubing; if the pump sits below the water line, fit the check valve so water cannot siphon back into it. More diffusers, tubing and pumps are in \u003ca href=\"\/collections\/aeration\"\u003eAeration\u003c\/a\u003e, and staff at the Lethbridge store can help you match one to your pump.\u003c\/p\u003e","brand":"Aqua One","offers":[{"title":"Default Title","offer_id":45205182873800,"sku":"24351797","price":6.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/9724\/2568\/files\/aqua-one-pvc-round-airstone-75cm.jpg?v=1788466850"},{"product_id":"aqua-one-pvc-encased-air-disk-small-7-5-cm","title":"Aqua One PVC-Encased Air Disk, Small (7.5 cm)","description":"\u003cp\u003eA flat disk diffuser in a PVC housing. Disks sit low on the substrate and produce a wide, flat column of bubbles rather than a point source, which moves more water for the same pump output.\u003c\/p\u003e\n\u003ch2\u003eKey features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eProvides oxygen and water movement, and assists in releasing carbon dioxide build-up.\u003c\/li\u003e\n\u003cli\u003eReleases a constant stream of fine bubbles that will not disturb your aquatic inhabitants.\u003c\/li\u003e\n\u003cli\u003eEncourages healthy bacteria growth and adds an attractive element to the display.\u003c\/li\u003e\n\u003cli\u003eIntended to be used with an air pump, check valve and airline tubing.\u003c\/li\u003e\n\u003cli\u003eSuitable for coldwater and tropical aquariums.\u003c\/li\u003e\n\u003cli\u003eFlat profile sits low and tucks behind hardscape easily.\u003c\/li\u003e\n\u003cli\u003eAqua One item 14043 — Airstone PVC Encased Air Disk Small. Supplier lists the disk at 7.5 cm.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAir stones are a consumable — mineral scale and biofilm slowly close off the pores, output drops and the pump works harder, so plan on replacing them periodically. Aqua One intend these to be run with an air pump, check valve and airline tubing; if the pump sits below the water line, fit the check valve so water cannot siphon back into it. More diffusers, tubing and pumps are in \u003ca href=\"\/collections\/aeration\"\u003eAeration\u003c\/a\u003e, and staff at the Lethbridge store can help you match one to your pump.\u003c\/p\u003e","brand":"Aqua One","offers":[{"title":"Default Title","offer_id":45205183103176,"sku":"24354043","price":6.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/9724\/2568\/files\/aqua-one-air-disk-small.jpg?v=1788466850"},{"product_id":"aqua-one-pvc-encased-air-disk-medium-10-cm","title":"Aqua One PVC-Encased Air Disk, Medium (10 cm)","description":"\u003cp\u003eThe medium disk diffuser at 10 cm, in a PVC housing. A wider disk spreads the bubble column further across the tank floor, useful in bigger or deeper aquariums.\u003c\/p\u003e\n\u003ch2\u003eKey features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eProvides oxygen and water movement, and assists in releasing carbon dioxide build-up.\u003c\/li\u003e\n\u003cli\u003eReleases a constant stream of fine bubbles that will not disturb your aquatic inhabitants.\u003c\/li\u003e\n\u003cli\u003eEncourages healthy bacteria growth and adds an attractive element to the display.\u003c\/li\u003e\n\u003cli\u003eIntended to be used with an air pump, check valve and airline tubing.\u003c\/li\u003e\n\u003cli\u003eSuitable for coldwater and tropical aquariums.\u003c\/li\u003e\n\u003cli\u003eFlat profile sits low and tucks behind hardscape easily.\u003c\/li\u003e\n\u003cli\u003eAqua One item 14044 — Airstone PVC Encased Air Disk Medium. Supplier lists the disk at 10 cm.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAir stones are a consumable — mineral scale and biofilm slowly close off the pores, output drops and the pump works harder, so plan on replacing them periodically. Aqua One intend these to be run with an air pump, check valve and airline tubing; if the pump sits below the water line, fit the check valve so water cannot siphon back into it. More diffusers, tubing and pumps are in \u003ca href=\"\/collections\/aeration\"\u003eAeration\u003c\/a\u003e, and staff at the Lethbridge store can help you match one to your pump.\u003c\/p\u003e","brand":"Aqua One","offers":[{"title":"Default Title","offer_id":45205183135944,"sku":"24354044","price":9.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/9724\/2568\/files\/aqua-one-air-disk-medium.jpg?v=1788467007"},{"product_id":"aqua-one-shellfish-airstone-small-4-2-x-5-4-cm","title":"Aqua One Shellfish Airstone, Small (5 x 3.5 cm)","description":"\u003cp\u003eA small shell-shaped air stone, 5 x 3.5 cm, for people who would rather the diffuser looked like part of the scape than a grey block.\u003c\/p\u003e\n\u003ch2\u003eKey features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eProvides oxygen and water movement, and assists in releasing carbon dioxide build-up.\u003c\/li\u003e\n\u003cli\u003eReleases a constant stream of fine bubbles that will not disturb your aquatic inhabitants.\u003c\/li\u003e\n\u003cli\u003eEncourages healthy bacteria growth and adds an attractive element to the display.\u003c\/li\u003e\n\u003cli\u003eIntended to be used with an air pump, check valve and airline tubing.\u003c\/li\u003e\n\u003cli\u003eSuitable for coldwater and tropical aquariums.\u003c\/li\u003e\n\u003cli\u003eAqua One item 10355 — Airstone Shell Fish Small 5 cm x 3.5 cm.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAir stones are a consumable — mineral scale and biofilm slowly close off the pores, output drops and the pump works harder, so plan on replacing them periodically. Aqua One intend these to be run with an air pump, check valve and airline tubing; if the pump sits below the water line, fit the check valve so water cannot siphon back into it. More diffusers, tubing and pumps are in \u003ca href=\"\/collections\/aeration\"\u003eAeration\u003c\/a\u003e, and staff at the Lethbridge store can help you match one to your pump.\u003c\/p\u003e","brand":"Aqua One","offers":[{"title":"Default Title","offer_id":45205183168712,"sku":"24354466","price":2.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/9724\/2568\/files\/aqua-one-shellfish-airstone-small.jpg?v=1788467007"},{"product_id":"aqua-one-starfish-airstone-small-5-x-5-cm","title":"Aqua One Starfish Airstone, Small (5 x 5 cm)","description":"\u003cp\u003eThe smaller starfish air stone at 5 x 5 cm, suited to nano tanks and betta setups where a full bar stone would be too much movement.\u003c\/p\u003e\n\u003ch2\u003eKey features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eProvides oxygen and water movement, and assists in releasing carbon dioxide build-up.\u003c\/li\u003e\n\u003cli\u003eReleases a constant stream of fine bubbles that will not disturb your aquatic inhabitants.\u003c\/li\u003e\n\u003cli\u003eEncourages healthy bacteria growth and adds an attractive element to the display.\u003c\/li\u003e\n\u003cli\u003eIntended to be used with an air pump, check valve and airline tubing.\u003c\/li\u003e\n\u003cli\u003eSuitable for coldwater and tropical aquariums.\u003c\/li\u003e\n\u003cli\u003eAqua One item 10356 — Airstone Star Fish Small 5 cm x 5 cm.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAir stones are a consumable — mineral scale and biofilm slowly close off the pores, output drops and the pump works harder, so plan on replacing them periodically. Aqua One intend these to be run with an air pump, check valve and airline tubing; if the pump sits below the water line, fit the check valve so water cannot siphon back into it. More diffusers, tubing and pumps are in \u003ca href=\"\/collections\/aeration\"\u003eAeration\u003c\/a\u003e, and staff at the Lethbridge store can help you match one to your pump.\u003c\/p\u003e","brand":"Aqua One","offers":[{"title":"Default Title","offer_id":45205183201480,"sku":"24354467","price":2.99,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/9724\/2568\/files\/aqua-one-starfish-airstone-small.jpg?v=1788467008"},{"product_id":"aqua-one-clear-pvc-airline-tubing-5-m","title":"Aqua One Clear PVC Airline Tubing, 5 m","description":"\u003cp\u003eClear PVC airline in a 5 m length, designed to connect air pumps to air stones, disks and other air-driven accessories.\u003c\/p\u003e\n\u003ch2\u003eKey features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eConnects Aqua One air pumps and air stones together.\u003c\/li\u003e\n\u003cli\u003eLow maintenance and easy to replace.\u003c\/li\u003e\n\u003cli\u003eClear PVC, so it disappears against glass and backgrounds.\u003c\/li\u003e\n\u003cli\u003eAqua One item 10404 — Air Line PVC 5m Clear.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAirline hardens and yellows with age and can crack at the fittings, so replace it when it stops sitting snugly on a barb. If your pump sits below the water line, fit a check valve so water cannot siphon back into it during a power cut. Air stones, valves and pumps are in \u003ca href=\"\/collections\/aeration\"\u003eAeration\u003c\/a\u003e, and staff at the Lethbridge store can help you match tubing to your setup.\u003c\/p\u003e","brand":"Aqua One","offers":[{"title":"Default Title","offer_id":45205183267016,"sku":"24356074","price":6.99,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/9724\/2568\/files\/aqua-one-airline-tubing-5m.jpg?v=1788466649"},{"product_id":"aqua-one-tortoise-airstone-medium-6-x-8-cm","title":"Aqua One Tortoise Airstone, Medium (6 x 8 cm)","description":"\u003cp\u003eA tortoise-shaped air stone, 6 x 8 cm, that doubles as a small ornament while doing the job of a diffuser.\u003c\/p\u003e\n\u003ch2\u003eKey features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eProvides oxygen and water movement, and assists in releasing carbon dioxide build-up.\u003c\/li\u003e\n\u003cli\u003eReleases a constant stream of fine bubbles that will not disturb your aquatic inhabitants.\u003c\/li\u003e\n\u003cli\u003eEncourages healthy bacteria growth and adds an attractive element to the display.\u003c\/li\u003e\n\u003cli\u003eIntended to be used with an air pump, check valve and airline tubing.\u003c\/li\u003e\n\u003cli\u003eSuitable for coldwater and tropical aquariums.\u003c\/li\u003e\n\u003cli\u003eAqua One item 10360 — Airstone Tortoise Medium.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAir stones are a consumable — mineral scale and biofilm slowly close off the pores, output drops and the pump works harder, so plan on replacing them periodically. Aqua One intend these to be run with an air pump, check valve and airline tubing; if the pump sits below the water line, fit the check valve so water cannot siphon back into it. More diffusers, tubing and pumps are in \u003ca href=\"\/collections\/aeration\"\u003eAeration\u003c\/a\u003e, and staff at the Lethbridge store can help you match one to your pump.\u003c\/p\u003e","brand":"Aqua One","offers":[{"title":"Default Title","offer_id":45205183365320,"sku":"24357578","price":3.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/9724\/2568\/files\/aqua-one-tortoise-airstone-medium.jpg?v=1788467008"}],"url":"https:\/\/www.tropicalfishimports.com\/collections\/aeration.oembed?page=2","provider":"Tropical Fish Imports ","version":"1.0","type":"link"}