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Australian rainbow (Melanotaenia nigrans) — Melanotaeniidae

Australian rainbow

Melanotaenia nigrans
LC · Least Concern

The Australian rainbow (Melanotaenia nigrans) is a brackish-water fish of the family Melanotaeniidae that grows up to 10 cm.

Length
10 cm
Water
Brackish
Diet
Omnivore
Behaviour
Large groups
Activity
Diurnal
Body shape
Torpedo-shaped
Substrate
Mixed bottom
Danger
Harmless
Edibility
Not eaten

Description

The black-banded rainbowfish is a rainbowfish (Melanotaeniidae) from northern Australia. The species has a slender, silvery body with a conspicuous dark lengthwise stripe and red-edged fins. It inhabits rainforest streams, lily lagoons and small streams and also occurs in larger waters. It lives in schools and feeds on small invertebrates, insects and plant matter. The species is harmless to humans.

Frequently asked questions

How do you recognise the Australian rainbow?

The Australian rainbow has a torpedo-shaped body, is mainly silver-grey and shows a horizontal stripes pattern.

Where does the Australian rainbow live?

The Australian rainbow lives in brackish water and is mostly found around mixed bottom.

How big does the Australian rainbow get?

The Australian rainbow grows to a maximum of about 10 cm. On average the species is around 6 cm.

Is the Australian rainbow dangerous to humans?

No, the Australian rainbow is harmless to humans.

Is the Australian rainbow edible?

The Australian rainbow is not usually eaten.

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All data

Identification

Dutch name
Zwartband-regenboogvis sourced
English name
Australian rainbow verified
Scientific name
Melanotaenia nigrans
Family
Melanotaeniidae
Other names
Black striped rainbow fish; Black-banded jewelfish; Blackbanded rainbowfish; Black-banded rainbowfish; Common freshwater sunfish verified

Appearance

Size class
Small verified
Max length (cm)
10.0 verified
Average length (cm)
6.0 verified
Body shape
Torpedo-shaped sourced
Dominant colour
Silver / grey inferred
Pattern
Horizontal stripes inferred
Tail shape
Forked inferred
Mouth position
Terminal inferred
Lips
Thin inferred
Barbels
No sourced
Dorsal fins
Two separate inferred
Dorsal spines
Yes sourced

Habitat & distribution

Water type
Brackish sourced
Substrate
Mixed bottom sourced
Origin
Native sourced

Behaviour & biology

Diet
Omnivore sourced
Social behaviour
Large groups inferred
Territorial
No inferred
Activity
Diurnal inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
Yes inferred

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

Same genus Melanotaenia

More from the family Melanotaeniidae

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