HomeFreshwater aquarium fishCatfish & plecosClown squeaker Clown squeaker (Synodontis decora) Scientific name: Synodontis decora Boulenger, 1899 The Clown squeaker (Synodontis decora) is a freshwater fish of the family Mochokidae that grows to about 27 cm (11 in). It is easy to keep and aggressive, is best kept in a species tank and needs a tank of at least 210 L (55 US gal), water at 24–28°C (75–82°F) and a pH of 6.0–8.0. Native range: Africa, Throughout Congo River basin. Clown squeaker care at a glanceCare levelEasyTemperamentAggressiveCommunity tankNot suitableAdult size27 cm (11 in)Minimum tank210 L (55 US gal)Temperature24–28°C (75–82°F)pH6.0–8.0Hardness4–25 dGH (71–446 ppm)DietOmnivore. Accepts pellets, frozen foods and brine shrimp. Species factsScientific nameSynodontis decoraFamilyMochokidae (Squeakers or upside-down catfishes)OrderSiluriformes (Catfish)ClassActinopterygii (Ray-finned fishes)Maximum length31.8EnvironmentFreshwater;; pH range: 6.0 - 8.0; dH range: 4 - 25 benthopelagicClimateTropicalDistributionAfrica: throughout Congo River basin except Luvua and Luapula drainages, but including Pool Malebo (=Stanley Pool) and drainages of the Ubangi and Kasai.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.) More catfish & plecosSynodontis brichardiBlotched upsidedown catfishSynodontis nigriventrisPareutropius buffeiBronze corydorasCorydoras aeneusBloch's catfishPimelodus blochiiBlue panaqueBaryancistrus begginiSee all catfish & plecos SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0. Aquarium care parameters compiled, checked and converted to metric and imperial units by Guppies.za.net.Last updated 28 September 2026