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Flag-tailed tetra (Moenkhausia lepidura) — Characidae

Flag-tailed tetra

Moenkhausia lepidura
Family: Characidae
LC · Least Concern

The Flag-tailed tetra (Moenkhausia lepidura) is a freshwater fish of the family Characidae that grows up to 11 cm.

Length
10.5 cm
Water
Freshwater
Diet
Carnivore
Behaviour
Schooling
Activity
Diurnal
Body shape
Torpedo-shaped
Substrate
Mixed bottom
Danger
Harmless
Range
South America; Amazon and Orinoco basins and the Guianas.
Edibility
Not eaten

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Description

The flag-tailed tetra is a small freshwater characin of the family Characidae from South America. The species grows to about 10 cm and has a slender, silvery body with a characteristic dark marking on the tail. It lives in schools in flowing and standing waters of the Amazon and Orinoco basins and the Guianas, and feeds on small invertebrates. As a schooling fish, group living provides protection from predators. The species is a common inhabitant of clear and black water and is occasionally kept as an aquarium fish. It is harmless to humans.

Frequently asked questions

How do you recognise the Flag-tailed tetra?

The Flag-tailed tetra has a torpedo-shaped body, is mainly silver-grey and shows a spots pattern. Slender little schooling fish with characteristic dark markings on the tail.

Where does the Flag-tailed tetra live?

The Flag-tailed tetra lives in fresh water and is mostly found around mixed bottom. South America; Amazon and Orinoco basins and the Guianas.

How big does the Flag-tailed tetra get?

The Flag-tailed tetra grows to a maximum of about 11 cm.

Is the Flag-tailed tetra dangerous to humans?

No, the Flag-tailed tetra is harmless to humans. None required: this species is harmless to humans.

Is the Flag-tailed tetra edible?

The Flag-tailed tetra is not usually eaten.

More photos

Flag-tailed tetra (Moenkhausia lepidura) — Characidae — 2
iNaturalist ((c) fins_and_fur, some rights reserved (CC BY-NC))
Flag-tailed tetra (Moenkhausia lepidura) — Characidae — 3
Wikimedia Commons — Dr. K. H. Lüling (CC BY-SA 4.0)
Flag-tailed tetra (Moenkhausia lepidura) — Characidae — 4
Wikimedia Commons — Clinton & Charles Robertson from RAF Lakenheath, UK & San Marcos, TX, USA & UK (CC BY 2.0)
Flag-tailed tetra (Moenkhausia lepidura) — Characidae — 5
Wikimedia Commons — Dr. K. H. Lüling (CC BY-SA 4.0)
Fin

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All data

Identification

English name
Flag-tailed tetra sourced
Scientific name
Moenkhausia lepidura
Family
Characidae

Appearance

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

Habitat & distribution

Water type
Freshwater sourced
Substrate
Mixed bottom sourced
Natural range
South America; Amazon and Orinoco basins and the Guianas. inferred
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Diet (detail)
Small invertebrates sourced
Social behaviour
Schooling inferred
Territorial
No inferred
Activity
Diurnal inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
No inferred
Seasonality
Present year-round in its habitat; no pronounced seasonality known. inferred
Special features
Slender little schooling fish with characteristic dark markings on the tail. sourced

For anglers

Edibility
Not eaten sourced
Fishing method
Not a target species for angling; at most an incidental catch or usable as baitfish. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless sourced
First aid
None required: this species is harmless to humans. sourced

Status & sources

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

Same genus Moenkhausia

More from the family Characidae

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