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Irian Jaya rainbowfish (Melanotaenia irianjaya) — Melanotaeniidae

Irian Jaya rainbowfish

Melanotaenia irianjaya

The Irian Jaya rainbowfish (Melanotaenia irianjaya) is a freshwater fish of the family Melanotaeniidae that grows up to 9 cm.

Length
8.5 cm
Water
Freshwater
Behaviour
Schooling
Activity
Diurnal
Body shape
Torpedo-shaped
Substrate
Open water
Danger
Harmless
Range
Asia: Indonesia

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Description

The Irian Jaya rainbowfish is a rainbowfish (Melanotaeniidae) from clear streams, lakes and swamps of western New Guinea. The species grows to about 10 cm and has a deep, laterally compressed body; dominant males colour up spectacularly with blue, yellow, red or green tints that glow in the morning light. As a social schooling fish it swims in the upper and middle layer and snaps at insects, larvae, small invertebrates and algae. The fish is harmless to humans.

Frequently asked questions

How do you recognise the Irian Jaya rainbowfish?

The Irian Jaya rainbowfish has a torpedo-shaped body and is mainly multicoloured.

Where does the Irian Jaya rainbowfish live?

The Irian Jaya rainbowfish lives in fresh water and is mostly found around open water. Asia: Indonesia

How big does the Irian Jaya rainbowfish get?

The Irian Jaya rainbowfish grows to a maximum of about 9 cm.

Is the Irian Jaya rainbowfish dangerous to humans?

No, the Irian Jaya 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.

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All data

Identification

English name
Irian Jaya rainbowfish sourced
Scientific name
Melanotaenia irianjaya
Family
Melanotaeniidae

Appearance

Size class
Small verified
Max length (cm)
8.5 verified
Body shape
Torpedo-shaped sourced
Dominant colour
Multicoloured sourced
Tail shape
Forked inferred

Habitat & distribution

Water type
Freshwater sourced
Substrate
Open water sourced
Natural range
Asia: Indonesia sourced
Origin
Native inferred

Behaviour & biology

Social behaviour
Schooling sourced
Territorial
No inferred
Activity
Diurnal inferred
Reproduction
Separate sexes inferred
Sexual dimorphism
Yes inferred
Seasonality
Present year-round in its habitat; no pronounced seasonality known. inferred

For anglers

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 verified
First aid
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. verified

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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