The black phantom tetra, or simply phantom tetra, is a small freshwater fish of the characin family of order Characiformes. It is native to the upper Paraguay basin and upper Madeira basin in Brazil and Bolivia. It is commonly seen in the aquarium trade.

The black phantom tetra comes from northern Paraguay and central Brazil. It is a peaceful schooling fish and a great choice for a community

Black Phantom tetras are social creatures that prefer to stay in groups. They're not a schooling species, but they are shoaling fish that will stick together most of the time. For the most part, this species is non-aggressive. However, males can exhibit some territorial behavior from time to time