i tried and succeeded in keeping 'em alive for almost 5-6 months, but it was like, although i won the battle i lost the war, as not even one of them will have any great colors or fins due to the constant aggression, and squabbles
it will just be another cichlid tank
i grew one jing kang and one kamalau and a zz and 3 cuban cichlids from 1.5" to 5"+ in the same tank, just couldn't go on. ended up stunting one of the cubans as well
separated all of 'em in the end and then they started showing better colors and better growth as well