I have a Flame in my 90, and to the best of my knowledge, doesn't bother anything. Pics at things occasionally, mostly algaes & some of the small sponges growing on the rock. I had a coral beauty in my 40, but it got moved to make room for the large sohal being temporarily housed there. I'll put it back in today since the sohal has been behaving himself, and the angel shouldn't get picked on.(hopefully!)