please help!

[nima]

I have a yellow tang which i bought about a week ago. he is becoming a yelowish brown color and today i noticed a cut from his upper fins to the middle of his stomach. My ammonia is 0, nitrite 0, nitrate 0, salinity 1.024 temp 80. its a 30 gallon tank and has been set up for about 3 months now. Can anybody help?

 

[playtime]

the cut may be caused by him rubbing on rocks. Does he have ich? When your lights have been on for a few minutes, does his color change back to yellow. What other fish are in there with him? I was told by other members on the board that a 30 gal tank isn't larg enough for a yellow tang because the need alot of room for swimming. This too could be the reason for the cut.
playtime

 

[misty927]

Well Trey, not in the technical mood today? Slice, spilling guts? God forbid you start talking like the rest of us...