Encyclopedia / Rainbowfish / Lake Kurumoi rainbowfish
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Variations

1 kinds · tap one for a closer look

Lake Kurumoi rainbowfish

Melanotaenia parva · Parva, Kurumoi rainbow

Peaceful and active; keep in a group of 6 or more.

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10 cmAdult size ✓
UnknownTemperature ?
UnknownpH ?
UnknownSmallest tank ?

This one is best kept on its own, or with its own kind.

Not recommended
  • Giant gourami eats animals up to about 10 cm. Lake Kurumoi rainbowfish only grows to 10 cm.
Not recommended
  • Oscar eats animals up to about 12 cm. Lake Kurumoi rainbowfish only grows to 10 cm.
Not recommended
  • Convict cichlid is aggressive and will bully peaceful lake kurumoi rainbowfish.
Facts checked against sources on 16 Oct 2026. ✓ means a source backs it; ? means no reliable source yet. See sources

Care and water

Hardness ?Unknown
Group size ?6 or more
Temperament ?Peaceful
Swims at ?Top
Care level ?Easy
Diet Omnivore
Lifespan ?Unknown
Size in shops 3–5 cm
Growth Medium

Behavior

Peaceful and active; keep in a group of 6 or more.

Food

Flakes, micro pellets, frozen foods and small live foods.

Tap a food to see what it is.

Male or female

MaleOrange-yellow and taller
FemaleSlimmer, paler
TipMales have a taller back and orange fins
How hard to tellEasy

Health

Common problems. Tap one to see the signs. This is a guide, not a diagnosis.

Breeding

Egg-scatterer (spawning mops) · Easy

Spawns daily in mops.

Pairing

A group of 6 or more.

Setup

A 100 L planted tank with spawning mops.

What starts it

Warm water and live food.

Eggs

A single spawning by a large pair gave about 76 larvae; eggs were about 1.2 mm across with about 92 % hatching. No hatch time was found.

Raising the fry

Feed infusoria, then baby brine shrimp.

Common mistakes
  • Keeping too few fish so spawning does not start
  • Eggs eaten by adults
  • Cold or dirty water
Full breeding guide, day-by-day plan and simulator →

Where it lives in the wild

RegionLake Kurumoi, Bird's Head Peninsula, West Papua, Indonesia
Rivers and lakesLake Kurumoi
HabitatSmall, clear lake with plant-fringed shallows
Native rangeAbout 25 km across
See it on the world map

The story of the lake kurumoi rainbowfish

A rainbowfish found only in Lake Kurumoi in West Papua, Indonesia, discovered by Gerald Allen in 1989 and described in 1990. Males are bluish-mauve with a black side band or silvery with red lines, with red fins, and young males turn orange-red as they grow. Live fish reached the hobby via Heiko Bleher in 1999. It is listed as Critically Endangered.

Gerald Allen described this rainbowfish in 1990 from Lake Kurumoi on the Bird's Head Peninsula of Indonesian New Guinea. It is one of several rainbowfishes confined to a single small lake. Captive-bred fish are kept by rainbowfish specialists.

First described by Gerald R. Allen in 1990. Named for 'parva' means 'small' in Latin.

  • It is known in the wild from just one small lake.
  • Despite its name 'parva', males develop high backs and colourful fins.
  • The Bird's Head Peninsula is a hotspot for rainbowfish species.

Sources

9 facts checked with sources