HomeFish encyclopediaRay-finned fishesCatfishSqueakers or upside-down catfishesOnespot squeaker Onespot squeaker (Synodontis notata) Scientific name: Synodontis notata Vaillant, 1893 The Onespot squeaker (Synodontis notata) is a freshwater fish of the family Mochokidae. In the aquarium it needs water at 22–26°C (72–79°F). Native range: Africa, Congo River basin, including Pool Malebo (= Stanley Pool) and drainages of the Kasai and Ubangi, but not in Lake Mweru and the Luapula. Onespot squeaker care at a glanceTemperature22–26°C (72–79°F) Species factsScientific nameSynodontis notataFamilyMochokidae (Squeakers or upside-down catfishes)OrderSiluriformes (Catfish)ClassActinopterygii (Ray-finned fishes)Maximum length26.5EnvironmentFreshwater;; pH range: 6.0 - 7.5; dH range: 4 - 15 benthopelagicClimateTropicalDistributionAfrica: Congo River basin, including Pool Malebo (= Stanley Pool) and drainages of the Kasai and Ubangi, but not in Lake Mweru and the Luapula.Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessUsesFisheries: of no interest; aquarium: commercialResilienceHigh, 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