So I had my 60g tank with my powder brown tang. Then after a little bit I moved him to a 120 and he's been doing great. But the last week he hasn't been swimming actively like normal. He stays close to the sand bed. I woke up one night and this rash had developed. It looks like he's peeling. So I immediately put him in a hospital tank not knowing what to do. Any idea what this is.
@Botheboss i had copper treated the 120 which is a fish only tank. And none other fish are showing any symptoms. Sadly the tang died in the quarantine.
Once they get that bad it's very difficult to save them. If you start treating when they become lethargic/avoiding light/etc. there is a chance to save them but velvet is a stone cold killer.