I've had an established 40G tank for about 4 years, nothing new has been added in a year and everyone has been thriving, no illness or death in over a year. I've never dealt with ICH or any other real diseases. Today I noticed that one of my 4 year old Congo Tetras has white fuzzy stuff around both eyes and on his scales. I don't know if it's ICH or not as I've never experienced it and I read in another post that ICH doesn't look fuzzy. Any clue what this is or how to treat it? I'm terrified of it wiping out my tank and I don't have a set up for a quarantine tank. Help greatly appreciated. Here are some pictures, it's really hard to see the fuzziness of the white though, the last one is the fish head on, you can kind of see it there. None of the other fish are showing any signs of this.