Rainbow Smelt
NameRainbow Smelt
Scientific NameOsmerus mordax
Common NamesRainbow Smelt, American Smelt, Freshwater Smelt, Sea Smelt
FamilyOsmeridae
OriginNorth America, Atlantic Coast, Great Lakes
Temperamentsemi-aggressive
Dietcarnivore
Care Leveladvanced
Minimum Tank Size (Gallons)150
Max Size (Inches)9
Water TypeFreshwater
Temperature Range (°F)40-60
pH Range6.5-7.5
Compatible SpeciesSpecies-specific tank recommended, Large, robust coldwater fish (e.g., some larger minnows or dace, if tank size permits)
Description
The Rainbow Smelt is a slender, silvery, coldwater fish known for its distinctive cucumber-like odor. These anadromous fish form large schools and are predatory, feeding on zooplankton, crustaceans, and smaller fish. They require very cool, highly oxygenated water and are best suited for species-specific tanks or specialized coldwater setups.
