i have 2 colomessus ascellus and two figure of eights in a freshwater tank. they live together peacefully and have done for about 10 months. there are no other fish in the tank though, so its a bit of a pain to keep algae free. mine eat chicken, prawn, fish and frozen bloodworm. the ascellus also eat flake and sinking pellets but the others wont touch them.
Jell