I just finished set up on a new 75. I'm thinking of putting my group of yellow labs (5) and my group of rustys (4). I'd like third species, preferably a blue cichlid. I have a group of juvie Demasoni (10) but my issue is their aggression. Has anyone kept a combo like this? non mbunas would consist of a trio of synos and a pair of smaller plecos. Im also considering a couple of my young alto comps (2-3) for a little shape. I know theyll eat the fry but that's not my biggest concern. My questions are the altos and the demasoni. will they work, or should I avoid mixing them?