The Cylinder tetra (Hemigrammus cylindricus) is a freshwater fish of the family Characidae that grows up to 11 cm.
Description
The cylinder tetra is a small characin (Characidae) from fresh water of northern South America. The species grows to about 11 cm and has a slender, almost cylindrical, silvery body with a shiny lateral stripe and a dark tail-base spot. It lives in schools in clear streams and rivers and eats small insects, larvae and plant material. The fish is harmless to humans.
Frequently asked questions
How do you recognise the Cylinder tetra?
The Cylinder tetra has an elongate, eel-like body and is mainly silver-grey.
Where does the Cylinder tetra live?
The Cylinder tetra lives in fresh water and is mostly found around mixed bottom. South America: Guyana
How big does the Cylinder tetra get?
The Cylinder tetra grows to a maximum of about 11 cm.
Is the Cylinder tetra dangerous to humans?
No, the Cylinder 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 Hemigrammus
More from the family Characidae

Want the complete picture on the Cylinder tetra?
Point your camera at the fish and Fin names the species in seconds. Free, and the Cylinder tetra is one of 12,519 species in the app.