Potassium Permanganate is a useful fish disease treatment; acting against a range of protozoan parasites including Trichodina, Costia and Chilodonella.
In addition to being an effective anti-parasite treatment, Potassium Permanganate can also assist with bacterial gill disease and bacterial disease such as skin ulcers. It will also oxidize dissolved organic matter, reducing the biological oxygen demand and improving water quality and clarity. Must know exact pond size.
1 tsp. per 1000 gal. of water.