The other day, my platy had a little bump on his chin, and the next day, had some white fluffy stuff on the top of his mouth, which after a couple days disappeared, but is back now. I can't get a picture but it looks like he is missing part of his mouth at the side, and also looks like his mouth is cracked/ripped down the middle on the bottom. I don't know what to do, my tank has been so healthy and now this.. I don't have a hospital tank or anything, but I could always set up one of the 10 gallon tanks with some gravel from the tank he's in right now.. just to get him out of there. I need help! Ps, he's the only fish showing any signs of a fungus on him and the water quality is good.