I use cupramine as a first line of defense. I hear its rough on dwarf angels, but it seems cupramine is uniquely safe here. My 1" flames n joc underwent it v well in fact.
I like what many bros espouse in building up immunity thru non copper use, but I don't dare to risk it, especially in a nano tank. I might try that approach later on..
Bom , thanks for all the links. Like I said , u are not selfish in ur sharing at all, good or bad.