HomeFreshwater aquarium fishCatfish & plecosGraceful pimelodella Graceful pimelodella (Pimelodella gracilis) Scientific name: Pimelodella gracilis Valenciennes, 1835 The Graceful pimelodella (Pimelodella gracilis) is a freshwater fish of the family Heptapteridae. In the aquarium it needs water at 20–24°C (68–75°F). Native range: South America, Orinoco, Amazon and La Plata basins. Graceful pimelodella care at a glanceTemperature20–24°C (68–75°F) BiologyDorsal spines (total): 1; Dorsal soft rays (total): 6; Anal spines: 0; Anal soft rays: 14 - 15Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific namePimelodella gracilisFamilyHeptapteridae (Three-barbeled catfishes)OrderSiluriformes (Catfish)ClassActinopterygii (Ray-finned fishes)Maximum length18.0EnvironmentFreshwater;; pH range: 6.5 - 7.8; dH range: 5 - 20 demersalClimateTropicalDistributionSouth America: Orinoco, Amazon and La Plata basins.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesAquarium: highly commercial More catfish & plecosRineloricaria fallaxGolden otocinclusMacrotocinclus affinisWhiptail catfishFarlowella acusReticulated corydorasCorydoras reticulatusPeppered corydorasCorydoras paleatusBluespotted corydorasCorydoras melanistiusSee all catfish & plecos SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026