HomeFreshwater aquarium fishCatfish & plecosWhiptail catfish Whiptail catfish (Farlowella acus) Scientific name: Farlowella acus Kner, 1853 The Whiptail catfish (Farlowella acus) is a freshwater fish of the family Loricariidae that grows to about 16 cm (6.3 in). It is easy to keep and peaceful and needs water at 24–26°C (75–79°F) and a pH of 6.0–7.0. Native range: South America, Lake Valencia and Torito River, Venezuela. Whiptail catfish care at a glanceCare levelEasyTemperamentPeacefulAdult size16 cm (6.3 in)Temperature24–26°C (75–79°F)pH6.0–7.0Hardness3–8 dGH (54–143 ppm)DietOmnivore BiologyAquarium keeping: feeds on plants and roots; in groups of 5 or more individuals; minimum aquarium size 80 cm.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameFarlowella acusFamilyLoricariidae (Armored catfishes)OrderSiluriformes (Catfish)ClassActinopterygii (Ray-finned fishes)Maximum length16.0EnvironmentFreshwater;; pH range: 6.0 - 7.0; dH range: 3 - 8 demersalClimateTropicalDistributionSouth America: Lake Valencia and Torito River basins.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesFisheries: of no interest; aquarium: commercialResilienceLow, minimum population doubling time 4.5 - 14 years (Fec = 40) More catfish & plecosRineloricaria fallaxGolden otocinclusMacrotocinclus affinisReticulated corydorasCorydoras reticulatusPeppered corydorasCorydoras paleatusBluespotted corydorasCorydoras melanistiusLeopard corydorasCorydoras juliiSee all catfish & plecos Can it live with...?Whiptail catfish and Bluespotted corydorasWhiptail catfish and CascarudoWhiptail catfish and Emerald catfishWhiptail catfish and Glass catfishWhiptail catfish and Leopard corydorasWhiptail catfish and Peppered corydorasWhiptail catfish and Raphael catfishWhiptail catfish and Reticulated corydorasWhiptail catfish and Spotted corydorasWhiptail catfish and Striped glass catfishWhiptail catfish and Whitebarred catfish 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