Rainbowfish · Melanotaeniidae

Melanotaenia cf. rubrostriata "Rawa Biru"

Rawa Biru rainbowfish

IUCNNOT EVALUATED
NEnot on the EX–LC scale
CARESNOT LISTED
Genus type speciesMelanotaenia nigransdescribed as Atherina nigrans Richardson 1843
Depth—not recorded
DietOmnivore (genus-level); flake with protein supplements per the seller
BreedingPlant spawner, genus-level; eggs placed on fine vegetation or spawning mops
Sexual dimorphismNot documentedNot documented for this form.
PhotographsSee photosGoogle Images →

Melanotaenia cf. rubrostriata "Rawa Biru" is a small undescribed rainbowfish that Imperial Tropicals sells as the Rawa Biru rainbowfish. Rawa Biru is an Indonesian place name meaning blue swamp.

What's in the name

Melanotaenia cf. rubrostriata "Rawa Biru" — mel-an-oh-TEE-nee-uh

Melanotaenia
  • melas + tainiaGreek — black + band, for the dark lateral band of many species in the genus
"Rawa Biru"
  • Rawa Birutrade label — a collection-locality label used by the trade; the form is undescribed, so there is no formal epithet

Taxonomy & naming

This is an undescribed form: no scientific name, authority or type material stands behind it, and its identity and range are not documented in the sources the atlas uses. The form is labelled "cf. rubrostriata", meaning the seller compares it to Melanotaenia rubrostriata, a described species. It has no name of its own. Rawa Biru is a locality label; the atlas does not document where it lies.

Morphology

Imperial Tropicals describes a small fish with long, pointed dorsal and anal fins carrying red spots, and many red stripes along the flanks.

Habitat

The label is a swamp locality. No drainage, coordinates or water measurements are recorded in the atlas.

Feeding

Rainbowfishes are omnivores that take small invertebrates and plant material (genus-level). Imperial Tropicals recommends a quality flake food with supplements such as baby brine shrimp.

Mating

Melanotaenia spawn over fine-leaved plants or spawning mops, with males displaying to females (genus-level).

Breeding

Imperial Tropicals describes genus-level spawning in weedy areas or on a yarn mop. Breeding of this form is not separately documented.

In the aquarium

Imperial Tropicals recommends a quality flake food with supplements such as baby brine shrimp, clean water, and frequent water changes, which it says bring nearly continuous spawning attempts. No adult size is given in the text the atlas holds.

Conservation

No IUCN assessment exists for this undescribed form. Its range and numbers are not documented, so its conservation status cannot be stated.

Sources

  1. Imperial Tropicals trade listing: Rawa Biru Rainbowfish

Last reviewed 2026-10-05.

How to cite

Aquarist Atlas (2026). Melanotaenia cf. rubrostriata "Rawa Biru". Aquarist Atlas.https://www.aquaristatlas.com/rainbowfish/melanotaenia-cf-rubrostriata-rawa-biru/

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