I have one as well. I've had mine for about 9 months with little problems. If you want to try a pygmay angel in a reef tank, imo, think coral beauty is a good choice. I keep softies and lps corals and he doesn't touch them. When i added my nepthea sp. he did nip it a little, but after two weeks or so he left it alone.
I think it is really hit or miss with any individual angel, but i feel coral beauties overall are the most "ree safe" choice. HTH