I had one for a while until Ich wiped out a lot of my fish a while back. He ended up dieing in the QT :-( He was by far the best dwarf angel I have ever had. Never touched any of my coral or harassed any of my fish. I have tried a couple of different species since (Flame, Bi-Color) and have had nothing but problems with them eating coral.
Unfortunately the eibli I was going to buy died Friday at the LFS. I went in yesterday to pick it up and I thought they sold it bc I didn't see it in the tank and they said they called and told me but I never got a call. The owner said that the fish got real big...I'm guessing it's stomach was what he was talking about. I'm glad I didn't have him die on me but I really wanted that one bc I was told that he was big for one in captivity