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SPECIES DOSSIER · RESEARCH STAGE

Iriatherina werneri

Threadfin Rainbowfish

One left-facing Threadfin Rainbowfish on black
Status reviewOpen species explanation
About this image

Illustrative or adapted specimen presentation. It is not a documentary photograph of LIMNIC stock, a voucher specimen or evidence of successful breeding.

Scientific references establish the profile’s research context; they do not by themselves establish image ownership or validate the depicted animal.

Media provenance register · Original creator and reuse permissions remain subject to verification where the retained record is incomplete.

Identity and origin

Origin
Southern Indonesian Papua; also Papua New Guinea and northern Australia
Identity
Native New Guinea–Australian rainbowfish

Males display elongated fin rays above and below a slender body. The published maximum body length is 4 cm standard length; fin extensions and total length are different measurements. An Indonesian locality must be documented separately from Australian or Papua New Guinean lines.

Habitat and care

Vegetated lowland swamps, ponds and slow streams. Habitat and identity reference

Plan a group, fine foods and calm feeding opportunities. Small size and delicate fins call for careful companion selection.

Design for feeding and movement

Care-planning notes. Confirm exact requirements for the species and source population.

  • Check adult dimensions and social needs for this species; small body size alone does not establish aquarium suitability.
  • Provide swimming space and refuge, and choose companions with compatible feeding behaviour.
  • Match food size to the animal and observe feeding directly, especially when keeping small species with faster feeders.
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Evidence record

Conservation record: A current published assessment has not been verified for this profile. This does not imply low risk or permission to trade.

Catalogue inclusion confirms a research record, not current stock, legal export, or destination-country import permission.

  1. Catalog of Fishes: accepted name and distribution.
  2. FishBase: size and ecology