Fin's Fish Guide
The Cairns rainbowfish (Cairnsichthys rhombosomoides) is a freshwater fish of the family Melanotaeniidae that grows up to 9 cm.
Description
The Cairns rainbowfish is a small rainbowfish (Melanotaeniidae) endemic to clear rainforest streams of northeastern Queensland in Australia. The species grows to about 9 cm and has a slender, silvery body with a yellowish tinge and fine stripes. As a schooling fish it swims in flowing, clear water and eats small insects, larvae and algae. The fish is harmless to humans.
Frequently asked questions
How do you recognise the Cairns rainbowfish?
The Cairns rainbowfish has an elongate, eel-like body and is mainly silver-grey.
Where does the Cairns rainbowfish live?
The Cairns rainbowfish lives in fresh water and is mostly found around sand or mud bottom. Oceania: Australia
How big does the Cairns rainbowfish get?
The Cairns rainbowfish grows to a maximum of about 9 cm. On average the species is around 6 cm.
Is the Cairns rainbowfish dangerous to humans?
No, the Cairns rainbowfish is harmless to humans. This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status.
More photos
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
More from the family Melanotaeniidae
Want the complete picture on the Cairns rainbowfish?
Point your camera at the fish and Fin names the species in seconds. Free, and the Cairns rainbowfish is one of 12,519 species in the app.