HomeFreshwater aquarium fishBarbs, danios & rasborasSicklefin labeo Sicklefin labeo (Labeo weeksii) Scientific name: Labeo weeksii Boulenger, 1909 The Sicklefin labeo (Labeo weeksii) is a freshwater fish of the family Cyprinidae. BiologyDorsal soft rays (total): 11-13; Vertebrae: 30 - 31. Both lips have rows of conical papillae on the inner surface; the upper edge of the dorsal fin is straight or feebly convex; the body has the characteristic longitudinal dark bands; a dark spot is found on the caudal peduncle.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameLabeo weeksiiFamilyCyprinidae (Minnows or carps)OrderCypriniformes (Carps)ClassActinopterygii (Ray-finned fishes)Maximum length29.0EnvironmentFreshwater; benthopelagicClimateTropicalDistributionAfrica: widely distributed in the Upper and Lower Congo River basin [=Congo]. One unsubstantiated record from the Malagarasi River, Lake Tanganyika. Most closely resembles Labeo lineatus and is only dubiously distinct from that speciesConservation status (IUCN)Least Concern (LC)Threat to humansHarmlessUsesAquarium: commercialResilienceMedium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.) More barbs, danios & rasborasCoppernose barbRaiamas christyiGoldfinned barbPuntius sachsiiHarlequin rasboraTrigonostigma heteromorphaDwarf rasboraBoraras maculatusTwospot rasboraRasbora elegansGlowlight rasboraTrigonostigma hengeliSee all barbs, danios & rasboras SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026