sohal scratching!!

[castroantonio]

I have a Sohal tang in a QT, one month ago.

I never saw a white spot on his body, but the fish is scratching.
I dont know why!
cause is in a Hospital tank with cupramine 2 weeks ago. (I dont have copper test) but I followed cupramine label instructions.

what do you think?? why is still scratching?
tahnk you

[Mr. Brooks]

The copper is irritating it. Do a water change and run carbon.

[snorvich]

As mentioned in your other thread, test for copper. You should never use copper without the ability to verify results.