HomeFish encyclopediaRay-finned fishesSilversidesRainbowfishes, blue eyesBulolo rainbowfish Bulolo rainbowfish (Chilatherina bulolo) Scientific name: Chilatherina bulolo Whitley, 1938 The Bulolo rainbowfish (Chilatherina bulolo) is a freshwater fish of the family Melanotaeniidae. In the aquarium it needs water at 24–26°C (75–79°F). Native range: Oceania, Markham and Ramu river systems in Papua New Guinea. Bulolo rainbowfish care at a glanceTemperature24–26°C (75–79°F) BiologyDorsal spines (total): 5 - 7; Dorsal soft rays (total): 9-13; Anal spines: 1; Anal soft rays: 19 - 24Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameChilatherina buloloFamilyMelanotaeniidae (Rainbowfishes, blue eyes)OrderAtheriniformes (Silversides)ClassActinopterygii (Ray-finned fishes)Maximum length7.0EnvironmentFreshwater; pelagicClimateTropicalDistributionOceania: Markham and Ramu river systems in Papua New Guinea.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