The Rummy Nose Tetra (Hemigrammus rhodostomus) is a species of tropical freshwater characin fish originating in South America, popular among fishkeepers as an aquarium fish. One of many small tetras belonging to the same genus, it is on average 2 in long when fully grown, and is a long-established favourite among tropical fish keepers.
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: iridescent green scales are frequently seen adorning the fish at the point where the fontanel meets the body. The fins are hyaline, with the exception of the caudal fin. This fin is adorned with black and white horizontal stripes, variable in numbe