I doubt its boredom as butterflys and angels are not reef safe as they are known to nip at corals. I'm just trying to find some corals they don't like!

Quote Originally Posted by nikitapita View Post
It has been my experience that what you are up against is board em. If you are able to keep all of the fish from getting bored by adding constant sources of algae and other foodstuffs you dramatically reduce the chances your fish picking at what they shouldn't.
For some reason our powder blue tang starts to pick at the bottom (of course) seams of silicone when we fail to provide him nori.
Just a suggestion