I put a pocillopora and some gorgs in last week. My Klein's Butterfly immediately went into feeding frenzy mode and attacked them. I'm now wondering if he's why my cup and hammer aren't extending even though the cup looks a nice healthy green. I've never seen him nip at anything until now, so I thought he was being a gentleman. HAH!
Took him back to the store (after dismantling the **** scape to catch him) and came home with a Christmas wrasse.