Or, if you want a different option, add plenty of driftwood, a large group of wild-type angels, massive school of tetras, massive school of corydoras, pairs of apistogramma and other dwarf cichlids, pencilfish, smaller plecs, maybe even a group of hatchetfish at the top. Peoples instinct is to put big fish in big tanks, but large numbers of little fish can be every bit as interesting and appealing IMO.