I've read and been told, to never keep different species of shellies in a tank together. I keep mine separated and life has been fine. But recently I received a few free outcast multies, and I added them to a grow out tank I have with several assorted Tangs, and a trio of Gephyrochromis moorii (mbuna) that are only here for another month. In the tank I have a very young pair of caudos as well ... It's been 3 weeks, and I have the caudos spawning in a shell, in one end, (no fry yet) and the multies have claimed some territory with shells at the other end. The tank is 48" long 18" wide. Fry survival isn't likely as I have a host of young Buescheri, and Kendalli eyeing anything that moves.
So far I've broken a couple rules and I seem to be getting away with it.
