Hi all,I have a 125g with a pair of spawning cubans an a bonded pair of red tiger motas,a 5'' black belt and 3 juvie carpintis.The pairs have taken up residence on either end of the tank and defend feircely pinning the other fish in the middle.One of the pairs has to be moved to an empyt 90g I have.Which of the pairs do you guys think can co-exist better in a community setting and who should go in the 90g?,they will have the 90g to themselves.Thanks.