HomeFish encyclopediaRay-finned fishesSilversidesRainbowfishes, blue eyesYakati rainbowfish Yakati rainbowfish (Melanotaenia angfa) Scientific name: Melanotaenia angfa Allen, 1990 The Yakati rainbowfish (Melanotaenia angfa) is a freshwater fish of the family Melanotaeniidae. In the aquarium it needs water at 24–26°C (75–79°F). Yakati rainbowfish care at a glanceTemperature24–26°C (75–79°F) BiologyDorsal spines (total): 5 - 7; Dorsal soft rays (total): 11-15; Anal spines: 1; Anal soft rays: 21 - 26Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameMelanotaenia angfaFamilyMelanotaeniidae (Rainbowfishes, blue eyes)OrderAtheriniformes (Silversides)ClassActinopterygii (Ray-finned fishes)Maximum length12.0EnvironmentFreshwater;; pH range: 6.5 - 7.5 benthopelagicClimateTropicalDistributionAsia: known only from two tributary streams of the Yakati River in the middle of the narrow isthmus that connects the Vogelkop Peninsula with the remainder of New Guinea (Irian Jaya, Indonesia).Conservation status (IUCN)Data deficient (DD)Threat 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