LOL
For a more serious reply, IME Labidochromis grow slower than a lot of the other common mbuna. I think that the tank size you're thinking of might be a little bit limiting for long term adults to enjoy without possible aggression issues (3+ years). Some of the common zebras could work (red, cobalt, etc). Some of the smaller haps might be alright as well (Smaller Protomelas, Placidochromis electra, Otopharynx lithobates or tetraspilus, etc).