Black Tetra(Gymnocorymbus ternetzi )

The Black Tetra, also known as Gymnocorymbus ternetzi, is a popular aquarium fish characterized by its deep-bodied, roughly tetragonal shape and silvery-grey coloration with black markings. It is often called blackmoor or petticoat fish. Younger fish display prominent black markings on their hindquarters and fins, which may fade to gray as they age. They are generally peaceful and thrive in groups, making them suitable for community tanks.