I'm trying to help a friend figure out what his queen angle has growing on it. The fish has what looks like white cotton growing on it's fins well that's where it started now it's spreading onto it's mouth as well as it's belly. The LFS gave him some medication and it's not improving at all. Told him that I would post here since everyone's been very helpfull any time i've had a problem, that I couldn't figure out. Thanks in advance!