• Size

    2 to 2.5 inches (5.1-6.4 cm)
  • Diet

    Vegetation, insects, small worms, fish eggs
  • Range

  • Habitat

    Tropical, swift-moving and clear freshwater rivers

Physical Characteristics

  • Long body that deepens with age, large eyes and two dorsal fins.
  • Fins are bright: red on males and yellow on females. Body is a pink-gray while scales light in blue when reflecting light from the front.
  • Individual typically measures between 2 to 2.5 inches (5.1 – 6.4 cm) in length.

Diet / Feeding

  • Diet consists of vegetation, insects, small worms and fish eggs.

Range / Habitat

  • Occurs on the island of New Guinea, in the Mamberamo River in West Papua, Indonesia.
  • Found in tropical, swift-moving and clear freshwater rivers.
  • Extent of this species’ reach is unknown due to insufficient surveying of its area.

Conservation Status

  • “Data Deficient” on the IUCN Red List.

Additional Information

  • Also known as the “praecox rainbowfish.”
  • A schooling fish: aggregates in female-male groups of ten or more in its natural habitat.


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