So I had a rainbow cichlid, convict and firemouth in a 55. The rainbow was aggressive as all **** so I got rid of him and the convict. I now have a 55 with just a firemouth, rainbow shark and pictus cat. I have a baby EBJD growing in a 20 long waiting to go in the 55. My LFS has a beautiful XL Festivum which I told them to hold for me. They also have this beautiful ctenopoma kingsleyae. Can I have all 4 of those (with the other two non-cichlids) in the 55 long term?