Andean Silverside
NameAndean Silverside
Scientific NameBasilichthys semotilus
Common NamesAndean Silverside, Pejerrey de Río
FamilyAtherinopsidae
OriginSouth America, Andean Rivers, Peru, Chile
Temperamentpeaceful
Dietomnivore
Care Leveladvanced
Minimum Tank Size (Gallons)75
Max Size (Inches)10
Water TypeFreshwater
Temperature Range (°F)50-68
pH Range7.0-8.0
Compatible SpeciesSpecies-specific tank, Other cool-water riverine fish
Description
The Andean Silverside (Basilichthys semotilus) is a slender, silvery fish native to cool, oxygen-rich Andean mountain streams in Peru and Chile. This active, schooling species is omnivorous, feeding on small invertebrates and plant matter. It requires specific cool water conditions and high flow, making it an advanced species for specialized aquariums.
