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Yellowback tetra (Moenkhausia chrysargyrea) — Characidae

Yellowback tetra

Moenkhausia chrysargyrea
Family: Characidae
LC · Least Concern

The Yellowback tetra (Moenkhausia chrysargyrea) is a freshwater fish of the family Characidae that grows up to 12 cm.

Length
12 cm
Water
Freshwater
Diet
Omnivore
Behaviour
Schooling
Activity
Diurnal
Body shape
Torpedo-shaped
Substrate
Open water
Danger
Harmless
Range
Fresh water of northern South America, in clear streams and rivers with vegetated banks.
Edibility
Not eaten

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Description

The yellowback tetra is a small, silvery characin of the family Characidae (true tetras) reaching about 12 cm. The slender, laterally compressed body has a golden sheen over the back, an adipose fin (as in many characins) and a dark spot on the tail base. The species comes from the fresh water of northern South America and lives in schools in clear streams and rivers with vegetated banks. As an omnivore it eats insects, zooplankton, algae and plant matter, taken in the water column and at the surface. In the rainy season it spawns among the water plants. Through its great numbers it is an important prey fish for larger species and occasionally appears in the aquarium hobby.

Frequently asked questions

How do you recognise the Yellowback tetra?

The Yellowback tetra has a torpedo-shaped body, is mainly silver-grey and shows a plain pattern. Small, silvery South American tetra with a golden tinge on the back, an adipose fin and a dark blotch on the caudal peduncle.

Where does the Yellowback tetra live?

The Yellowback tetra lives in fresh water and is mostly found around open water. Fresh water of northern South America, in clear streams and rivers with vegetated banks.

How big does the Yellowback tetra get?

The Yellowback tetra grows to a maximum of about 12 cm.

Is the Yellowback tetra dangerous to humans?

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

Is the Yellowback tetra edible?

The Yellowback tetra is not usually eaten.

More photos

Yellowback tetra (Moenkhausia chrysargyrea) — Characidae — 2
Wikimedia Commons — Carl H. Eigenmann (CC0) [illustratie]
Yellowback tetra (Moenkhausia chrysargyrea) — Characidae — 3
Wikimedia Commons — Dutra, G.M.; Freitas, T.M.S.; Prudente, B.S.; Salvador, G.N.; Leão, M.D.V.; Peixoto, L.A.W.; Mendonça, M.B.; Netto-Ferreira, A.L.; Silva, F.R.; Montag, L.F.A.; Wosiacki, W.B. (CC BY 4.0)
Yellowback tetra (Moenkhausia chrysargyrea) — Characidae — 4
iNaturalist ((c) xavier_francois, some rights reserved (CC BY-NC))
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All data

Identification

English name
Yellowback tetra verified
Scientific name
Moenkhausia chrysargyrea
Family
Characidae

Appearance

Size class
Small verified
Max length (cm)
12.0 verified
Body shape
Torpedo-shaped sourced
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 northern South America, in clear streams and rivers with vegetated banks. verified
Origin
Native verified

Behaviour & biology

Diet
Omnivore verified
Diet (detail)
Insects, zooplankton, algae and plant parts 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 among aquatic plants; eggs and larvae drift in open water. sourced
Special features
Small, silvery South American tetra with a golden tinge on the back, an adipose fin and a dark blotch on the caudal peduncle. sourced

For anglers

Edibility
Not eaten verified
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 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 Moenkhausia

More from the family Characidae

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