Originally Posted by floatingfish
the coral beauty was added first, which wasnt the smartest idea. the diamond goby was added about 3 weeks ago .
Those are the only two fish? What size is your tank? It looks to me, tell me if I am wrong, that the angel has gone headfirst into the rocks a few times trying to get the goby. Did you rearange the rocks. Coral beauties (at least the ones I have had) are not that aggressive though. They are territorial, but not aggressive. Explain what they are like with each other please.