When small, it is marked with black on its hind parts and dorsal and anal fins; the black fades to gray as the fish
The black tetra (Gymnocorymbus ternetzi), also called blackamoor, or petticoat fish, is a deep-bodied fish that is 4–7.5 cm (1.5–3 inches) long. When small, it is marked with black on its hind parts and dorsal and anal fins; the black fades to gray as the fish
