the flame angel in no problem at all..... its the koran angel that is a bit of a pest..... im switching him out ..... selling him to my buddie, and getting something else.... but yeah anyways hes no problem at all.... actually probably my nicest fish in there never touched a coral and gets along with everyone... the koran on the other hand has a sweet tooth for polyps .... yellow ones in perticular... but not star (thank god)