I have a dream to fill my pond with all Parachromis species. I'm considering not including Doviis but besides that, I want everything. Jags, Yellow jackets, Motags, Loisellei, everything. But there's a problem, since these are all Parachromis species, there is a high chance they'll hybridize. Now personally, I think hybrid fish are pretty cool, but when there's breeding, there's always aggression. I don't want a pair of a jag and a motag to kill all the others. So besides only having males or only females, is there a way to have them not to hybridize?