 The fish is one of several very similar species including "Hemigrammus bleheri", and "Petitella georgiae", and it is possible that more recently collected specimens available in the aquarium trade are members of one or other of these similar species.The common name applied to most of these fishes is "rummy-nose tetra", though other common names are in circulation (such as "firehead tetra" for "H. bleheri", according to FishBase).The rummy-nose tetra is fusiform in shape, whose basal body colour is a translucent silvery colour suffused in some specimens with a greenish tint