HomeFreshwater aquarium fishLoachesPseudogastromyzon cheni Pseudogastromyzon cheni Scientific name: Pseudogastromyzon cheni Liang, 1942 Pseudogastromyzon cheni is a freshwater fish of the family Balitoridae that grows to about 6 cm (2.4 in). It is difficult to keep and peaceful, suits community aquariums and needs a tank of at least 210 L (55 US gal), water at 22–24°C (72–75°F) and a pH of 6.5–7.5. Native range: Asia, China. Pseudogastromyzon cheni care at a glanceCare levelDifficultTemperamentPeacefulCommunity tankGoodAdult size6 cm (2.4 in)Minimum tank210 L (55 US gal)Temperature22–24°C (72–75°F)pH6.5–7.5DietOmnivore. Accepts flakes, sinking pellets, algae wafers, frozen foods and bloodworms. Species factsScientific namePseudogastromyzon cheniFamilyBalitoridae (River loaches)OrderCypriniformes (Carps)ClassActinopterygii (Ray-finned fishes)Maximum length5.0EnvironmentFreshwater;; pH range: 6.5 - 7.5; dH range: 7 - 9 benthopelagicClimateTemperateDistributionAsia: China.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceHigh, minimum population doubling time less than 15 months (Preliminary K or Fecundity.) More loachesSchistura mahnertiBeaufortia kweichowensisLiniparhomaloptera disparis disparisHillstream loachGastromyzon punctulatusBotia kubotaiSinibotia pulchraSee all loaches 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