I think a harem of the less fussy Apistogramma is the best suggestion or maybe the kribs.
Personally I think the tank is a little on the small side for any of the c/a cichlids.
With the Apistogramma you can observe some really interesting behaviour and they have lovely colours.
You will also be able to make a nice,more detailed scape with the smaller dwarf cichlids.
Which Apistos are easier? Borelli, Cacatoides....?





