HomeFish encyclopediaRay-finned fishesCarpsMinnows or carpsSucker barb Sucker barb (Barbichthys laevis) Scientific name: Barbichthys laevis Valenciennes, 1842 The Sucker barb (Barbichthys laevis) is a freshwater fish of the family Cyprinidae. In the aquarium it needs water at 23–26°C (73–79°F). Native range: Asia, Malay Peninsula, Sumatra, Borneo and Java; Mekong and Chao Phraya basins. Sucker barb care at a glanceTemperature23–26°C (73–79°F) BiologyEnlarged suborbital bones occupying most of cheek; each caudal lobe with a dark stripe; longitudinal stripe across dorsal.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameBarbichthys laevisFamilyCyprinidae (Minnows or carps)OrderCypriniformes (Carps)ClassActinopterygii (Ray-finned fishes)Maximum length30.0EnvironmentFreshwater; benthopelagicClimateTropicalDistributionAsia: Malay Peninsula, Sumatra, Borneo and Java; Mekong and Chao Phraya basins.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