HomeFish encyclopediaRay-finned fishesSilversidesNeotropical silversidesBrook silverside Brook silverside (Labidesthes sicculus) Scientific name: Labidesthes sicculus Cope, 1865 The Brook silverside (Labidesthes sicculus) is a freshwater fish of the family Atherinopsidae. In the aquarium it needs water at 5–20°C (41–68°F). Brook silverside care at a glanceTemperature5–20°C (41–68°F) BiologyOccur near surface of lakes, ponds, and quiet pools of creeks and small to large rivers. Usually found in open water (Ref 5723, 10294). Feed on zooplankton, including copepods, cladocerans, and midge larvae.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameLabidesthes sicculusFamilyAtherinopsidae (Neotropical silversides)OrderAtheriniformes (Silversides)ClassActinopterygii (Ray-finned fishes)Maximum length13.0Common length8.4EnvironmentFreshwater; pelagicClimateSubtropicalDistributionNorth America: St. Lawrence-Great Lakes (except Lake Superior) and Mississippi River basins from southern Quebec in Canada to eastern Minnesota and south to Louisiana in the USA; from Santee River drainage in South Carolina to Galveston Bay drainage in Texas, USA.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessUsesBait: usuallyResilienceHigh, minimum population doubling time less than 15 months (K=3.70; tmax=2) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026