My Powder Brown Tang has the classic symptoms of disease (scratching and swimming around like a madman). He has a 6mm round red spot on the side of his body and a few lightish brown spots (about 3mm)on both sides of his body. I have only had him for a few weeks. Any suggestions? Thanks in advance. I have a 10G tank I can setup as a quarantine, but I need to know what to treat with and what it is if possible. Copper I assume, but are some brands better than others?
jch
jch