{"product_id":"koi-tancho-black-tail-swordtail","title":"Koi Tancho Black Tail Swordtail","description":"\u003cp\u003eThe koi tancho black tail swordtail takes the white body and red head patch of the tancho form and adds a dark tail, giving a three-part colour break along the fish. It is a selectively bred line of Xiphophorus hellerii, and as with all koi-patterned livebearers the markings differ from fish to fish, so it is worth choosing individuals in person if pattern matters to you.\u003c\/p\u003e\u003ch2\u003eAquarium care\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eAdults commonly reach 10 cm or more in the body.\u003c\/li\u003e\n\u003cli\u003eWants a long tank with plenty of horizontal swimming room.\u003c\/li\u003e\n\u003cli\u003eA strong jumper — a well-fitted lid is essential.\u003c\/li\u003e\n\u003cli\u003ePrefers hard, alkaline water with steady temperature and decent flow.\u003c\/li\u003e\n\u003cli\u003ePeaceful toward other species; males spar among themselves.\u003c\/li\u003e\n\u003cli\u003eLivebearing, so young appear regularly in a mixed group.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThey fit well into a hard-water community with platies, mollies, corydoras, peaceful barbs and larger rasboras. Keep two or three females per male, and avoid known fin-nippers. Aquarium fish must never be released into ponds or local waterways.\u003c\/p\u003e\u003cp\u003eStock rotates with each shipment, and livestock is available for local pickup at our Lethbridge store. Browse the \u003ca href=\"\/collections\/swordtail\"\u003eswordtail collection\u003c\/a\u003e.\u003c\/p\u003e","brand":"Tank Pets","offers":[{"title":"Default Title","offer_id":44874939236552,"sku":"99197","price":14.99,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0659\/9724\/2568\/files\/Koi_Tancho_Black_Tail_Swordtail.png?v=1765909741","url":"https:\/\/www.tropicalfishimports.com\/products\/koi-tancho-black-tail-swordtail","provider":"Tropical Fish Imports ","version":"1.0","type":"link"}