Black neon tetra

Black neon tetra
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Characiformes
Family: Acestrorhamphidae
Genus: Hyphessobrycon
Species:
H. herbertaxelrodi
Binomial name
Hyphessobrycon herbertaxelrodi
Géry, 1961

The black neon tetra (Hyphessobrycon herbertaxelrodi) is a freshwater fish of the characin family (Characidae) of the order Characiformes. It is native to the Paraguay basin of southern Brazil. They are often found in the aquarium trade, and a feral population has been established in the rio Paraíba do Sul basin due to the trade.