Fin's Fish Guide
The Gamma tetra (Knodus gamma) is a freshwater fish of the family Characidae that grows up to 5 cm.
Description
The gamma tetra is a small South American characin (Characidae) from clear fresh water of the Amazon basin. The species grows to about 5 cm and has a slender, silvery body with a fine dark longitudinal stripe and a spot on the tail base. As a schooling fish it swims in flowing streams and rivers and snaps at insects, larvae, algae and small zooplankton. The fish is harmless to humans.
Frequently asked questions
How do you recognise the Gamma tetra?
The Gamma tetra has an elongate, eel-like body and is mainly silver-grey.
Where does the Gamma tetra live?
The Gamma tetra lives in fresh water and is mostly found around open water. South America: Ecuador
How big does the Gamma tetra get?
The Gamma tetra grows to a maximum of about 5 cm.
Is the Gamma tetra dangerous to humans?
No, the Gamma tetra is harmless to humans. This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status.
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Knodus
More from the family Characidae
Want the complete picture on the Gamma tetra?
Point your camera at the fish and Fin names the species in seconds. Free, and the Gamma tetra is one of 12,519 species in the app.