Fin's Fish Guide
The Tetra (Astyanax scabripinnis) is a freshwater fish of the family Characidae that grows up to 16 cm.
Description
The rough-finned tetra is a characin (Characidae) from South America. The species is small, slender and silvery with a dark spot on the tail base. It lives mainly in quiet (lentic) parts of headwaters and mountain streams in southeastern Brazil and adjacent areas. As an omnivore it feeds on small invertebrates, insect larvae, algae and plant matter. It lives in schools. The species is harmless to humans.
Frequently asked questions
How do you recognise the Tetra?
The Tetra has a torpedo-shaped body, is mainly silver-grey and shows a plain pattern. Dark caudal blotch; schooling tetra of Brazilian mountain streams and upper reaches.
Where does the Tetra live?
The Tetra lives in fresh water and is mostly found around mixed bottom. South America; upper reaches and mountain streams.
How big does the Tetra get?
The Tetra grows to a maximum of about 16 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 not usually 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.