Waterlife ProtozinProtozin is used for the control of all protozoan and fungal infections like white spot, fungus, neon tetra disease, velvet, costiasis and trichodiniasis. You will require 4 separate applications to complete the course of treatment. By adding the treatment on days 1, 2 and 3, the product safely compounds in strength and does not burden the already stressed animals with a hard hitting formula. The final dose on day 6 is a preventative measure to try