nhilcrest: ANY angelfish addition to a reeftank is a risky move.Each individual is different,with differing "tastes".Once settled into your tank,the fishes tastes may change.Don't give up hope on the fish because of the loss of some GSP's! I added a chaetodontoplus mesoleucos {Singapore angel}to my 220 gallon reef 3 years ago.It ate an $80 red cynarina before going after my PRICELESS 7 year old table acropora.The acropora and fish still reside peacefully in my reetank today,after the fish was successfully weaned to take prepared foods.The bicolor angelfish is a BEAUTIFUL fish! Maybe the
star polyps were not eaten,but just closed up from a disturbance.