HomeFreshwater aquarium fishOther freshwater fishLined sole Lined sole (Achirus lineatus) Scientific name: Achirus lineatus Linnaeus, 1758 The Lined sole (Achirus lineatus) is a freshwater fish of the family Achiridae that grows to about 15 cm (5.9 in). It is moderate to keep and peaceful and needs a tank of at least 115 L (30 US gal), water at 22–29°C (72–84°F) and a pH of 7.5–8.2. Native range: Western Atlantic, Florida, USA and northern Gulf of Mexico to northern Argentina. Lined sole care at a glanceCare levelModerateTemperamentPeacefulAdult size15 cm (5.9 in)Minimum tank115 L (30 US gal)Temperature22–29°C (72–84°F)pH7.5–8.2DietCarnivore. Accepts flakes and live foods. BiologyDorsal spines (total): 0; Dorsal soft rays (total): 52-58; Anal spines: 0; Anal soft rays: 39 - 44Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameAchirus lineatusFamilyAchiridae (American soles)OrderPleuronectiformes (Flatfishes)ClassActinopterygii (Ray-finned fishes)Maximum length23.0Common length17.0Depth range20 m (66 ft)EnvironmentMarine; brackish; reef-associated; depth range ? - 20 mClimateTropicalDistributionWestern Atlantic: Florida, USA and northern Gulf of Mexico to northern Argentina.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesAquarium: commercialResilienceMedium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.) More other freshwater fishPumpkinseedLepomis gibbosusShort-tailed pipefishMicrophis brachyurus brachyurusFinescale tigerfishDatnioides microlepisFreshwater garfishXenentodon cancilaSouth American lungfishLepidosiren paradoxaBlack drumPogonias cromisSee all other freshwater fish 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