Fish is new in QT. It has been there for about 4 1/2 weeks now. He was in cupramine at the fish store and appeared to get ich within 2-3 days in QT at my house. Following the LFS direction I treated him for 3 weeks keeping my copper levels between .3 and .5 (seachem copper test). The fish is very shy and hides alot. I am having a hard time getting a better picture than the one I posted. Once I get a better shot, I will post. The tang seems to be eating ok and acting normally. He just looks really ugly. I feed omega one marine flakes, New life spectrum pellets every day. I add Hikari seaweed extreme, frozen misis shrimp, and frozen omega seaweed once a week. I also put a small sheet of dried seaweed rubber banded to a rock 2 times per week. I have seen the tang eat everything except the misis shrimp.