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Sailfin tetra (Crenuchus spilurus) — Crenuchidae

Sailfin tetra

Crenuchus spilurus
Family: Crenuchidae
LC · Least Concern

The Sailfin tetra (Crenuchus spilurus) is a freshwater fish of the family Crenuchidae that grows up to 6 cm.

Length
5.7 cm
Water
Freshwater
Diet
Carnivore
Behaviour
Solitary
Activity
Diurnal
Body shape
Torpedo-shaped
Substrate
Open water
Danger
Harmless
Edibility
Not eaten

Description

The sailfin tetra (Crenuchus spilurus) is a small freshwater characin from the Orinoco and Amazon basins and the coastal rivers of the Guianas. It reaches only about 6 centimetres and lives in soft, acidic tropical water. Unlike most characins it is typically solitary and territorial. The predatory little fish feeds mainly on mayfly larvae, copepods and ostracods. In spawning, eggs are deposited on a substrate, stone or leaf and are guarded and tended by the male. The enlarged dorsal and anal fins of males give the species its sailfin name. The species is harmless.

Frequently asked questions

How do you recognise the Sailfin tetra?

The Sailfin tetra has a torpedo-shaped body, is mainly brown and shows a spots pattern.

Where does the Sailfin tetra live?

The Sailfin tetra lives in fresh water and is mostly found around open water.

How big does the Sailfin tetra get?

The Sailfin tetra grows to a maximum of about 6 cm.

Is the Sailfin tetra dangerous to humans?

No, the Sailfin tetra is harmless to humans.

Is the Sailfin tetra edible?

The Sailfin tetra is not usually eaten.

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All data

Identification

Dutch name
Zeiltetra inferred
English name
Sailfin tetra verified
Scientific name
Crenuchus spilurus
Family
Crenuchidae
Other names
Sailfin tetra verified

Appearance

Size class
Small verified
Max length (cm)
5.7 verified
Body shape
Torpedo-shaped sourced
Dominant colour
Brown inferred
Pattern
Spots inferred
Mouth position
Terminal sourced
Lips
Thin inferred
Barbels
No verified
Dorsal fins
One continuous sourced
Dorsal spines
No verified

Habitat & distribution

Water type
Freshwater sourced
Substrate
Open water sourced
Origin
Native verified

Behaviour & biology

Diet
Carnivore verified
Social behaviour
Solitary verified
Territorial
Yes verified
Activity
Diurnal sourced
Reproduction
Separate sexes verified
Sexual dimorphism
Yes sourced

For anglers

Edibility
Not eaten sourced
Fishing method
Geen doelsoort voor de hengelsport; hooguit incidentele vangst of bruikbaar als aasvisje. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless sourced

Status & sources

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

More from the family Crenuchidae

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