My golden dojo loaches and ghost shrimp are by far the best entertainers in my tank. The loaches speed race from one end of the tank to the other, intertwine and do a couple circles, then back to the other side of the tank. The ghost srimp will walk right across the top of these guys (who, so far, show no interest in tasting them....hope that ever changes), but head for the earest hidey hole when they see a guppy coming. Haha! Too funny.