I agreeI would recommend Mesonauta (festivum), any of the Heros sp (efasciatus, notatus, severus, sp. 'rotkiel'), Chocolate cichlids, Uaru, and Acara types (diadema, pulcher, portalegrensis, etc.) Guianacara sp. to name a few
-Jim
This.Which Geophagus do you have, and how many? They range in size and behavior.