HomeFish encyclopediaRay-finned fishesSilversidesRainbowfishes, blue eyesMubi rainbowfish Mubi rainbowfish (Melanotaenia mubiensis) Scientific name: Melanotaenia mubiensis Allen, 1996 The Mubi rainbowfish (Melanotaenia mubiensis) is a freshwater fish of the family Melanotaeniidae. Native range: Oceania, Papua New Guinea. BiologyInhabits narrow, crystal clear streams in closed-canopy forest, flowing through limestone hills.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameMelanotaenia mubiensisFamilyMelanotaeniidae (Rainbowfishes, blue eyes)OrderAtheriniformes (Silversides)ClassActinopterygii (Ray-finned fishes)Maximum length9.3EnvironmentFreshwater; benthopelagicClimateTropicalDistributionOceania: Papua New Guinea.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceMedium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026