I'm currently growing out 2 green terrors, 1 Jack Dempsey, 1 Texas cichlid, and 1 Mayan cichlid, which I am about to separate into individual tanks. But I was wondering if it was possible to keep them all for life in a tank with dimensions of 96"x 36"x 30", with lots of drift wood and rock inside. And would it be possible to keep something large like a clown knife with them?