I’m worried that I’m headed this way. Thanks for the reply.I had a bully female pearl before but only minor damage was caused and was no need to seperate.i have 2 big males that one will try n kill the other so now seperated. Tried several times to reintroduce but no good. One now sold. That was in a 24,000 litre system too. If you have rays that dont get along and its more than just a few bites here n there then i cant see it working longterm n will need seperating.