Plants

[cichlids4me]

I have 3 anubias with my mbuna. the larger of those have been with my mbuna for 3-4 years and have never had problems.

As far as to munch on I used to keep duckweed in with them and they seemed to really like it and it reproduced fast enough to keep an abundant supply of munchies for them.

 

[TheFanatic]

Individual fishes additude will also play a role. I've had success w/some plants and fish combos, and the same fish/plant combos elsewhere not work. Some Mbuna will chew on anything, or completely leave them alone. Maybe try a few, and see what happens.

I've also found that the earlier you introduce the plants the better. Throw plants in with some mature Africans and it may be a salad bar. Introduce them when the fish are small and they may just be used to them and never touch them when they get bigger....