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Banded astyanax (Astyanax fasciatus) — Characidae

Banded astyanax

Astyanax fasciatus
Family: Characidae
LC · Least Concern

The Banded astyanax (Astyanax fasciatus) is a freshwater fish of the family Characidae that grows up to 15 cm.

Length
15 cm
Water
Freshwater
Diet
Omnivore
Behaviour
Schooling
Activity
Diurnal
Substrate
Open water
Danger
Harmless
Range
Fresh water of Central and South America, in a wide variety of rivers, streams and lakes.
Edibility
Rarely eaten

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Description

The banded astyanax is a lively, silvery characin of the family Characidae (characins or tetras) reaching about 15 cm. The laterally compressed body has an adipose fin between the dorsal and tail fins, as in many characins, and often bears a dark spot on the shoulder and at the tail base; the fins are partly reddish. The species lives in fresh water of Central and South America, in a wide variety of rivers, streams and lakes. In schools it feeds on insects, insect larvae, small crustaceans, algae and plant material. In the rainy season it spawns in shallow, vegetated water. The group it belongs to is well known in the aquarium hobby; in its range it is a common prey for larger predators.

Frequently asked questions

How do you recognise the Banded astyanax?

The Banded astyanax is mainly silver-grey and shows a plain pattern. Lively, silvery characin (tetra) with an adipose fin and often a dark blotch on the shoulder and the caudal base; red in the fins.

Where does the Banded astyanax live?

The Banded astyanax lives in fresh water and is mostly found around open water. Fresh water of Central and South America, in a wide variety of rivers, streams and lakes.

How big does the Banded astyanax get?

The Banded astyanax grows to a maximum of about 15 cm.

Is the Banded astyanax dangerous to humans?

No, the Banded astyanax is harmless to humans. None required: this species is harmless to humans.

Is the Banded astyanax edible?

The Banded astyanax is rarely eaten.

More photos

Banded astyanax (Astyanax fasciatus) — Characidae — 2
Felipe C. Balbino Santos (CC BY-NC 4.0) via GBIF — iNaturalist
Banded astyanax (Astyanax fasciatus) — Characidae — 3
Alexander Travia (CC BY-NC 4.0) via GBIF — iNaturalist
Banded astyanax (Astyanax fasciatus) — Characidae — 4
moose439 (CC BY-NC 4.0) via GBIF — iNaturalist
Fin

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All data

Identification

English name
Banded astyanax inferred
Scientific name
Astyanax fasciatus
Family
Characidae
Other names
Mexican tetra

Appearance

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

Habitat & distribution

Water type
Freshwater verified
Substrate
Open water verified
Natural range
Fresh water of Central and South America, in a wide variety of rivers, streams and lakes. verified
Origin
Native verified

Behaviour & biology

Diet
Omnivore verified
Diet (detail)
Insects, insect larvae, small crustaceans, algae and plant material sourced
Social behaviour
Schooling verified
Territorial
No verified
Activity
Diurnal inferred
Reproduction
Separate sexes verified
Sexual dimorphism
No verified
Seasonality
Spawns in the rainy season in shallow, vegetated water; the eggs are scattered among aquatic plants. sourced
Special features
Lively, silvery characin (tetra) with an adipose fin and often a dark blotch on the shoulder and the caudal base; red in the fins. sourced

For anglers

Edibility
Rarely eaten verified
Fishing method
Fishing with plant bait or paste bait on a bottom or float rig. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless verified
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 Astyanax

More from the family Characidae

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