Fin's Fish Guide
The Australian rainbowfish (Melanotaenia australis) is a freshwater fish of the family Melanotaeniidae that grows up to 11 cm.
Description
The western rainbowfish is a colourful freshwater fish of the rainbowfish family (Melanotaeniidae) from north-western Australia. The species grows to about 11 cm and has a laterally compressed body that, depending on light and mood, shows a beautiful sheen of green, blue, yellow and red; males are more brightly coloured. It inhabits a wide range of habitats: rivers, creeks, swamps, lagoons, lakes and reservoirs. As an omnivore it eats small invertebrates, insects, algae and plant matter. Rainbowfishes live in schools and are popular in the aquarium. The species is harmless to humans.
Frequently asked questions
How do you recognise the Australian rainbowfish?
The Australian rainbowfish has a torpedo-shaped body, is mainly multicoloured and shows a plain pattern. Beautiful iridescence of green, blue, yellow and red that changes with light and mood.
Where does the Australian rainbowfish live?
The Australian rainbowfish lives in fresh water and is mostly found around open water. Northwestern Australia; a variety of freshwater habitats.
How big does the Australian rainbowfish get?
The Australian rainbowfish grows to a maximum of about 11 cm. On average the species is around 8 cm.
Is the Australian rainbowfish dangerous to humans?
No, the Australian rainbowfish is harmless to humans. None required: this species is harmless to humans.
Is the Australian rainbowfish edible?
The Australian rainbowfish is not usually eaten.
More photos
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Melanotaenia
More from the family Melanotaeniidae
Want the complete picture on the Australian rainbowfish?
Point your camera at the fish and Fin names the species in seconds. Free, and the Australian rainbowfish is one of 12,519 species in the app.