Heterandria formosa

E906269

Heterandria formosa is a tiny North American livebearing freshwater fish, often called the least killifish, popular in aquariums for its small size and peaceful nature.

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Statements (49)

Predicate Object
instanceOf fish species
livebearing fish
ray-finned fish
aquariumUse popular aquarium fish
suitable for nano aquariums
broodCharacteristic multiple broods at different developmental stages
superfetation
class Actinopterygii
commonName dwarf livebearer
least killifish NERFINISHED
describedBy Charles Frédéric Girard NERFINISHED
diet algae
insect larvae
microcrustaceans
small invertebrates
distributionType endemic to southeastern United States
family Poeciliidae NERFINISHED
genus Heterandria NERFINISHED
habitat ditches
freshwater
heavily vegetated waters
ponds
slow-moving streams
swamps
IUCNStatus Least Concern
kingdom Animalia
maximumLength about 1.2 inches
about 3 cm
nativeTo Florida NERFINISHED
Georgia NERFINISHED
Louisiana NERFINISHED
North America
South Carolina NERFINISHED
southeastern United States
notableTrait one of the smallest vertebrate species in North America
very small adult body size
order Cyprinodontiformes NERFINISHED
pHPreference about 6.5–8.0
phylum Chordata
reproduction internal fertilization
livebearing
sexualDimorphism females larger than males
socialBehavior shoaling fish
taxonRank species
temperament peaceful
temperaturePreference about 18–28 °C
waterPreference freshwater
slightly brackish tolerant
yearDescribed 1859

Referenced by (1)

Full triples — surface form annotated when it differs from this entity's canonical label.

Poeciliidae includesTaxon Heterandria formosa