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Cylinder tetra (Hemigrammus cylindricus) — Characidae

Cylinder tetra

Hemigrammus cylindricus
Family: Characidae

The Cylinder tetra (Hemigrammus cylindricus) is a freshwater fish of the family Characidae that grows up to 11 cm.

Length
10.8 cm
Water
Freshwater
Diet
Omnivore
Behaviour
Schooling
Activity
Diurnal
Body shape
Elongated (eel-like)
Substrate
Mixed bottom
Danger
Harmless
Range
South America: Guyana

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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

English name
Cylinder tetra sourced
Scientific name
Hemigrammus cylindricus
Family
Characidae

Appearance

Size class
Small verified
Max length (cm)
10.8 verified
Body shape
Elongated (eel-like) sourced
Dominant colour
Silver / grey sourced
Tail shape
Forked inferred

Habitat & distribution

Water type
Freshwater sourced
Substrate
Mixed bottom sourced
Natural range
South America: Guyana sourced
Origin
Native inferred

Behaviour & biology

Diet
Omnivore inferred
Diet (detail)
Invertebrates, algae and detritus inferred
Social behaviour
Schooling sourced
Territorial
No inferred
Activity
Diurnal inferred
Reproduction
Separate sexes inferred
Sexual dimorphism
No inferred
Seasonality
Present year-round in its habitat; no pronounced seasonality known. inferred

For anglers

Fishing method
Small in size and barely an angling target; mostly caught incidentally or as baitfish. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless verified
First aid
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. verified

Status & sources

Sources
FishBase via GBIF (DwC-A), CC-BY-NC 4.0

Same genus Hemigrammus

More from the family Characidae

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