The Black tetra (Gymnocorymbus ternetzi) is a freshwater fish of the family Characidae that grows up to 8 cm.
Description
The black tetra is a characin (Characidae) from South America. The species has a deep, laterally compressed body; juveniles are silvery-grey with two black crossbars and a dark rear half that fades with age. It lives in schools in the middle and upper water layers of quiet streams and rivers. As an omnivore it feeds on worms, small crustaceans and insects. It is a popular aquarium fish. The species is harmless to humans.
Frequently asked questions
How do you recognise the Black tetra?
The Black tetra has a flattened, disc-shaped body, is mainly silver-grey and shows a vertical stripes pattern.
Where does the Black tetra live?
The Black tetra lives in fresh water and is mostly found around open water.
How big does the Black tetra get?
The Black tetra grows to a maximum of about 8 cm.
Is the Black tetra dangerous to humans?
No, the Black tetra is harmless to humans.
Is the Black tetra edible?
The Black tetra is not usually eaten.
Download Fin's Fish Guide
Identify fish in seconds, log your catches and dives. Join the TestFlight beta.
All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Gymnocorymbus
More from the family Characidae
Download Fin's Fish Guide
Identify fish in seconds, log your catches and dives. Join the TestFlight beta.