Least Killifish
NameLeast Killifish
Scientific NameHeterandria formosa
Common NamesLeast Killifish, Dwarf Livebearer
FamilyPoeciliidae
OriginSoutheastern United States
Temperamentpeaceful
Dietomnivore
Care Levelbeginner
Minimum Tank Size (Gallons)5
Max Size (Inches)1.4
Water TypeFreshwater
Temperature Range (°F)68-79
pH Range6.0-8.0
Compatible SpeciesOther small, peaceful fish, Dwarf Shrimp, Snails, Pygmy Corydoras, Otocinclus Catfish
Description
The Least Killifish is one of the smallest fish species, native to the southeastern United States. This peaceful livebearer is ideal for nano tanks or as a dither fish in community aquariums with other small, non-aggressive species. They are known for their distinctive dark lateral stripe and ease of care.
