HomeFish encyclopediaRay-finned fishesSilversidesRainbowfishes, blue eyesLorentz's rainbowfish Lorentz's rainbowfish (Chilatherina lorentzii) Scientific name: Chilatherina lorentzii Weber, 1907 The Lorentz's rainbowfish (Chilatherina lorentzii) is a freshwater fish of the family Melanotaeniidae. In the aquarium it needs water at 26–30°C (79–86°F). Native range: Asia and Oceania, Irian Jaya in Indonesia and Papua New Guinea. Lorentz's rainbowfish care at a glanceTemperature26–30°C (79–86°F) BiologyDorsal spines (total): 5 - 7; Dorsal soft rays (total): 12-15; Anal spines: 1; Anal soft rays: 26 - 30Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameChilatherina lorentziiFamilyMelanotaeniidae (Rainbowfishes, blue eyes)OrderAtheriniformes (Silversides)ClassActinopterygii (Ray-finned fishes)Maximum length10.0EnvironmentFreshwater;; pH range: 7.5 - ?; dH range: ? - 15 pelagicClimateTropicalDistributionAsia and Oceania: Irian Jaya in Indonesia and 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