I wouldn't put them in a community environment with non-Africans. I've witnessed them being the most docile of Africans in our tank, but I just wouldn't trust putting them in a tank full of Tetra's or guppies.
One of the reasons of not mixing Non-Africans with Africans is the water requirements. Africans prefer a higher pH and harder water. Most community fish prefer a lower pH and softer water. Also, Africans personalities varies with each fish. You could get a terror of a yellow lab that would go after all of the other fish, but then you could get a peaceful fish that gets picked on by the guppies. The latter is rare, but could happen. Again, I would only put Africans with other Africans.