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Title
Black tetra #13439611
Description
The black tetra (Gymnocorymbus ternetzi) also known as the black skirt tetra or black widow tetra is a freshwater fish of the characin family (family Characidae) (which includes all tetras, including the piranha), of order Characiformes. It is native to the Paraguay and Guapore River basins of southern Brazil, Argentina, and Bolivia. Growing to about 6 cm (2.5 in) total length, the black tetra