I've been toying with the idea of a butterfly in a reef environment as well....I have some LPS and leather in the tank now. If I tried this, do you think I should do the fish first, and add zoos and palys after, or add the fish after the corals are settled? I love you copperband there...I was toying with either a copperband or a yellow longnose. Heard too many horror stories about heniochus sp. to test that one!