I have been told by several IFS's that damsels and Angelfish are incompatable, I have 4 damsels in my 80 gal tank along with a maroon clown, yellow tang, and a naso tang. I have two three striped damsels and two neon blue damsels (I think they are blue devils, I would have to look it up). I have wanted an Impartor angel since i started the tank and my wife won't let me get rid of the damsels. I have had no problems with my damsels at all, old or new fish