Fin's Fish Guide
The Rhinobrycon negrensis is a freshwater fish of the family Characidae that grows up to 4 cm.
Description
The Negro tetra is a very small characin (Characidae) from the northern Amazon basin in South America, in particular the Rio Negro in Brazil. The species reaches only about 4 cm and has a slender, translucent to silvery body. It lives in schools in blackwater rivers with low pH and abundant humic acids. As an omnivore the fish feeds on small zooplankton, insect larvae and plant material drifting in the water column or at the surface. Owing to its small size the species has no fishery value; it is, however, of scientific interest for understanding the species richness of the Amazon basin.
Frequently asked questions
How do you recognise the Rhinobrycon negrensis?
The Rhinobrycon negrensis has an elongate, eel-like body, is mainly silver-grey and shows a plain pattern. Very small blackwater characin from the Rio Negro.
Where does the Rhinobrycon negrensis live?
The Rhinobrycon negrensis lives in fresh water and is mostly found around mixed bottom. The north of the Amazon basin, in particular the Rio Negro in Brazil.
How big does the Rhinobrycon negrensis get?
The Rhinobrycon negrensis grows to a maximum of about 4 cm. On average the species is around 3 cm.
Is the Rhinobrycon negrensis dangerous to humans?
No, the Rhinobrycon negrensis is harmless to humans. None required: this species is harmless to humans.
Is the Rhinobrycon negrensis edible?
The Rhinobrycon negrensis is not usually eaten.
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
More from the family Characidae
Want the complete picture on the Rhinobrycon negrensis?
Point your camera at the fish and Fin names the species in seconds. Free, and the Rhinobrycon negrensis is one of 12,519 species in the app.