I had an idea to construct a Tanganyika tank around my Mbu puffer. Sounds like a bad idea but I've never seen any agression from him towards the community fish in his tank. I've heard conflicting reports about their agression so I thought I might experiment with some Tanganyika cichlids. I've heard they aren't as agressive and I like the Africans. Anyone have ideas as to which might fit the bill? Should I just abort the idea?