Fin's Fish Guide
The Tetra (Astyanax validus) is a freshwater fish of the family Characidae that grows up to 15 cm.
Description
The robust astyanax tetra is a characin (Characidae) from southeastern Brazil. The species is a sturdily built tetra-like fish with a silvery body and an adipose fin. It is mostly captured upstream and apparently stays in groups, in creeks with alternating fast-flowing stretches with sandy bottoms and calm sections with silty bottoms. As an omnivore it eats insects, small invertebrates, algae and plant matter. The species is harmless to humans.
Frequently asked questions
How do you recognise the Tetra?
The Tetra has a flattened, disc-shaped body, is mainly silver-grey and shows a plain pattern. Sturdily built small tetra-like fish of Brazilian streams; lives in groups.
Where does the Tetra live?
The Tetra lives in fresh water and is mostly found around mixed bottom. Southeastern Brazil; streams with fast-flowing and calm sections.
How big does the Tetra get?
The Tetra grows to a maximum of about 15 cm.
Is the Tetra dangerous to humans?
No, the Tetra is harmless to humans. None required: this species is harmless to humans.
Is the Tetra edible?
The Tetra is rarely eaten.
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Astyanax
More from the family Characidae
Want the complete picture on the Tetra?
Point your camera at the fish and Fin names the species in seconds. Free, and the Tetra is one of 12,519 species in the app.