Might have to eat my own words re: quarantine

[vaporize]

Originally Posted by Myka

Dwarf Angelfish are particularly sensitive to copper treatment, [Here's a study] as are scaleless fish, some large Angelfish, and some Tangs.

I can tell you that many of the pgymy angels (Centropyge species) especially from Hawaii doesn't tolerate copper at all. In particular flame & potter angel, anytime I add copper even cupramine in 25% or less dosage, they will die. I have also heard from importers that some large angel will stop eating all along with copper.