For a small cichlid, you could try a male/female pair of German Blue or Gold Rams, Bolivian Rams, or a single Keyhole cichlid.
Also, look into Porthole Cats or Flagtail Porthole Cats. They stay small, are very active and won't eat any other fish.
A really neat very active bottom dwelling tetra is the Hummingbird/Darter Tetra. They're not pretty, but they're very neat.
Also, look into Porthole Cats or Flagtail Porthole Cats. They stay small, are very active and won't eat any other fish.
A really neat very active bottom dwelling tetra is the Hummingbird/Darter Tetra. They're not pretty, but they're very neat.