I have a small vtail grouper alone in a 90 gallon. I put a coral beauty in there the other day that was getting beaten up in my 120. The grouper did not like it. He went after it and harrassed it. I thought it might stop eventually but the coral beauty was already beaten up so I put him in the sump to heal. Any takes on if the grouper will except or will he just harrass him endlessly? I know eventually the grouper will get large enough to eat him. I though he would appreciate a tankmate but apparently he likes being alone in the 90.