Seachem Flourish Potassium™

Flourish Potassium raises potassium in a planted aquarium without dragging nitrate or phosphate up with it.

Key features

• Derived from potassium sulphate, so it adds no nitrogen or phosphorus
• Targets the usual potassium deficiency signs: pinholes and yellowing edges on older leaves
• Often the first macro to run short in a fast growing tank or one filled with soft, low mineral water
• Lets you set your own nitrogen, phosphorus and potassium ratio rather than accepting a fixed blend

Potassium is one of the harder nutrients to test for at home, so most keepers dose to the label and read the plants instead. If older leaves are pitting while new growth looks fine, this is the bottle to try.

Sits beside Flourish Nitrogen and Flourish Phosphorus in plant fertilizer and additives.