Ok I this is my first problem with disease with a pleco. My Green Phantom that I have had for 4 months has a white growth on his head. He has been in no fights, eats on a regular basis(problem to regular). I have treated the Tank with "MelaFix" and "Pimafix". I want to know if this can spread to other plecos and if I need to move him to an empty tank. Picture Below







