Hyphessobrycon agulha

Hyphessobrycon agulha, also called the red-tailed flag tetra, is a species of freshwater ray-finned fish belonging to the family Acestrorhamphidae, the American characins.^[2] This fish is found in the basin of the Madeira River in Brazil along with parts of Peru and Bolivia. It reaches a maximum length of 4.3 centimetres (1.7 in).^[3] Though it is mainly found in the wild, it is occasionally kept by fishkeepers^[4] and is sometimes confused with the neon tetra.^[5] The fish is primarily an insectivore, though it does eat vegetable matter.^[6] It is considered to form a group with other species in Hyphessobrycon as they share a dark stripe running lengthwise.^[7]

Hyphessobrycon agulha
Conservation status
Least Concern  (IUCN 3.1)[1]
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Characiformes
Family:	Acestrorhamphidae
Genus:	Hyphessobrycon
Species:	H. agulha
Binomial name
Hyphessobrycon agulha Fowler, 1913[2]

While its name comes from the native name for this species along the Madeira River in Brazil,^[8] the fish also occurs in Colombia and Peru.