Hi,
Are you thinking of adding other fish too? Or just the cichlids? There are several dwarf cichlids that are cool and would also allow some dithers and maybe a Pleco. For instance, the dwarf Julies from Tanganyica with a few livebearers. there are a couple small Acaras, or a Keyhole cichlid (Cleithracara maronii, I think)with some tetra dithers. Then the Shell Dwellers from Malawi are another choice. You can also keep live plants with these guys if you wish.
Happy hunting!
Bob