Nox: absolutely not coral compatible IME. This was too bad becasue I think they are the most graceful of the small angels. I tried it twice and have to tear the tank apart to get them. Multiple time with Coral Beauty and no great luck, some OK, other are not. Only keep Yellowtail Pigmy one. No problem. No problem with the other three angels?
By no problem I mean not able to keep Xenia, unknown on fleshy LPS except Flavia, and occasional picking on SPS result in much less PE. These are OK with me so I consider them fine in my tank. None of my coral ever got kill by my angels.