So I have a orange clownfish that looks to be covered in white fuzz under blue light. In the tank I also have a black clownfish, blenny and goby. None of the other fish have the fuzz. It's been like this on the fish for over 2 months now, although it did seem to subside from time to time. After researching it seems like it is brook. If it is brook should it have died by now? I don't have a QT as of now. Does it sound like brook?