Brown rash-like spots on brand new tang

gksipps

Member
Help! Have a new tank, 90 gallons, fish only no reef. Have had the tank for 7 weeks, damsels for 6 weeks, and just added the tang yesterday as our first real fish. He did not eat anything last night, just kept to himself, then this morning he has what appears to be a brown-black rash growing along the sides of his body. Ah yes, and he is rubbing himself on the coral. Is he just stressed from the move? What is it? How can I fix it? It's not ich, right, because ich is white spots?
P.S. We still have the damsels, although they are coming out Monday. (My arm wasn't long enough to reach all the way down into the tank to get at them, so I am enlisting the help of a friend Monday to retrieve them!)
Help?!?
 
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