So I have had a FOWLR set up for about 3 months or more now that is understocked as it only has a citron goby, a mated pair of ocellaris clownfish, and a koran angelfish juvenile. So I decided to get a peaceful (or at least what i've been told about them) regal tang. All the fish have been in great health and have had no nips from territorial disputes or anything. However, after rearranging the rockwork and adding a hippo tang a week later I have noticed that the female ocellaris clown has a nip on it's top fin and the citron goby has a nip on it's tail fin. I'm just wondering if the added fish has ****ed off the angelfish or what. Also all the fish are within an inch of each others size. The hippo is the largest followed by the female clown then the juvenile angel, male clown and smallest the citron goby. Any ideas as to what caused the nipping or who is the culprit?
thanks
thanks