HomeFish encyclopediaRay-finned fishesCarpsMinnows or carpsTashkent riffle bleak Tashkent riffle bleak (Alburnoides oblongus) Scientific name: Alburnoides oblongus Bulgakov, 1923 The Tashkent riffle bleak (Alburnoides oblongus) is a freshwater fish of the family Cyprinidae. In the aquarium it needs water at 10–20°C (50–68°F). Native range: Asia, Syr-Darya basin. Tashkent riffle bleak care at a glanceTemperature10–20°C (50–68°F) Species factsScientific nameAlburnoides oblongusFamilyCyprinidae (Minnows or carps)OrderCypriniformes (Carps)ClassActinopterygii (Ray-finned fishes)Maximum length14.2EnvironmentFreshwater;; pH range: 7.0 - 7.5; dH range: 10 - 20 benthopelagicClimateTemperateDistributionAsia: Syr-Darya basin.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceMedium, minimum population doubling time 1.4 - 4.4 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