HomeFish encyclopediaRay-finned fishesCarpsMinnows or carpsDwarf sanjika Dwarf sanjika (Opsaridium tweddleorum) Scientific name: Opsaridium tweddleorum Skelton, 1996 The Dwarf sanjika (Opsaridium tweddleorum) is a freshwater fish of the family Cyprinidae. Native range: Africa, Lake Malawi and lower Zambezi River. Species factsScientific nameOpsaridium tweddleorumFamilyCyprinidae (Minnows or carps)OrderCypriniformes (Carps)ClassActinopterygii (Ray-finned fishes)Maximum length10.9EnvironmentFreshwater; demersalClimateTropicalDistributionAfrica: Lake Malawi and lower Zambezi River.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessResilienceHigh, minimum population doubling time less than 15 months (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