No, but they aren't totally safe with coral either. Almost no angel is, you just have to cross your fingers. C. argi is one of the safer ones. All the very small Centropyge have a bit better record plus smaller mouths! ( I'm not joking, less damage..)
Oops, I meant Fisher's Angel. It gets to 2.5 inches, C. argi gets to 3.1..
Matthew