| | Re: What to add!?
If you mean to the jaguar cichlid tank you may want to wait until they reach full size before you make the next purchase. The jaguar cichlids I am thinking of generally are housed in aquariums of 125 gallons or more, per pair. If you are talking of true convict cichlids, then they will get about 6" at maturity, but in my experience breeding them they rarely tolerate tank mates in anything smaller than a pretty large tank when they reach sexual maturity.
Dwarf g's to my knowledge can get along decently with most community fish.