HomeFish encyclopediaRay-finned fishesNeedle fishesRicefishesCelebes medaka Celebes medaka (Oryzias celebensis) Scientific name: Oryzias celebensis Weber, 1894 The Celebes medaka (Oryzias celebensis) is a freshwater fish of the family Adrianichthyidae. In the aquarium it needs water at 22–30°C (72–86°F). Native range: Asia, Indonesia (Celebes). Celebes medaka care at a glanceTemperature22–30°C (72–86°F) BiologyUsed in experimental research. Non-annual breeder. Is difficult to maintain in aquarium.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameOryzias celebensisFamilyAdrianichthyidae (Ricefishes)OrderBeloniformes (Needle fishes)ClassActinopterygii (Ray-finned fishes)Maximum length4.5EnvironmentFreshwater;; pH range: 8.0 - 9.0; dH range: ? - 16 benthopelagic; non-migratoryClimateTropicalDistributionAsia: Indonesia (Celebes).Conservation status (IUCN)Vulnerable (VU) (D2)Threat to humansHarmlessUsesFisheries: of no interestResilienceLow, minimum population doubling time 4.5 - 14 years (Assuming fec SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026