my answer is no, the jewel WASN'T a great addition. funny thing is i have a red zebra, ps. lombardoi and emerald jewel cichlid (all about 1.5") in a tank together and the jewel definitely has to be the boss all the time. the other 2 small fish are now pinned in a small area as the jewel has free reign of the small aquarium. the only way id say u can keep a jewel with other smaller fish is if the tank is large enough that the jewel wont spot them too often. how big is your tank?