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Discus tetra (Brachychalcinus orbicularis) — Characidae

Discus tetra

Brachychalcinus orbicularis
Family: Characidae
LC · Least Concern

The Discus tetra (Brachychalcinus orbicularis) is a freshwater fish of the family Characidae that grows up to 9 cm.

Length
9 cm
Water
Freshwater
Diet
Omnivore
Behaviour
Schooling
Activity
Diurnal
Body shape
Flat / disc-shaped
Substrate
Mixed bottom
Danger
Harmless
Range
The north of South America, in rivers and streams.
Edibility
Commonly eaten

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Description

The discus tetra is a characin (Characidae) from northern South America. The species reaches about 9 cm and has a strikingly deep, almost round and strongly compressed, silvery body, to which the name refers. It lives in schools in rivers and streams. As an omnivore it feeds on worms, insects, crustaceans and plant matter. The mirror-like, deep shape helps it vanish into a school from predators. Because of its handsome shape the species is sometimes kept as an aquarium fish; locally it is eaten.

Frequently asked questions

How do you recognise the Discus tetra?

The Discus tetra has a flattened, disc-shaped body, is mainly silver-grey and shows a plain pattern. Deep, almost round and mirror-like body; shoaling tetra.

Where does the Discus tetra live?

The Discus tetra lives in fresh water and is mostly found around mixed bottom. The north of South America, in rivers and streams.

How big does the Discus tetra get?

The Discus tetra grows to a maximum of about 9 cm. On average the species is around 6 cm.

Is the Discus tetra dangerous to humans?

No, the Discus tetra is harmless to humans. None required: this species is harmless to humans.

Is the Discus tetra edible?

Yes, the Discus tetra is commonly eaten.

More photos

Discus tetra (Brachychalcinus orbicularis) — Characidae — 2
iNaturalist ((c) Michael Verdirame, some rights reserved (CC BY-NC))
Discus tetra (Brachychalcinus orbicularis) — Characidae — 3
iNaturalist ((c) Sandra Roca Peña carrera de enfermería 1er año, some rights reserved (CC BY-NC))
Discus tetra (Brachychalcinus orbicularis) — Characidae — 4
Wikimedia Commons — François-Louis Laporte, comte de Castelnau (Public domain)
Discus tetra (Brachychalcinus orbicularis) — Characidae — 5
iNaturalist ((c) fins_and_fur, some rights reserved (CC BY-NC))
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All data

Identification

English name
Discus tetra verified
Scientific name
Brachychalcinus orbicularis
Family
Characidae
Other names
Disk characin; Disk tetra verified

Appearance

Size class
Small verified
Max length (cm)
9.0 verified
Average length (cm)
6.0 verified
Body shape
Flat / disc-shaped sourced
Dominant colour
Silver / grey inferred
Pattern
Plain 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
The north of South America, in rivers and streams. inferred
Origin
Native sourced

Behaviour & biology

Diet
Omnivore sourced
Diet (detail)
Worms, insects, crustaceans and plant material 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
Deep, almost round and mirror-like body; shoaling tetra. sourced

For anglers

Edibility
Commonly eaten sourced
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 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 Brachychalcinus

More from the family Characidae

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