Here's a good thread on tracking angel successes with different reef types
http://www.reefcentral.com/forums/showthread.php?t=1661152&page=16
it probably should be part of the fish primer sticky.
I've got a bi-color, flame, and coral beauty in a kind of a mixed reef 180 that's heavily fed. Haven't had any problems yet but I haven't had the bi-color long enough to really say how it will do long term. Once I've had that one longer I plan to add to that thread. My flame and coral beauty I've had for a while now with no issues.