WHATSTHATFISH
Bony fish

Least Killifish

Heterandria formosa

Also known as: Dwarf Livebearer, Dwarf Top Minnow, Lesser Killifish, Midget Livebearer, Mosquito Fish, Poeciliid Fish, Pygmy Livebearer

LCLeast ConcernIUCN Red List, 2013
Adult
@Arc · N/A, United States · January 20211 / 1
01

Overview

Found in schools, over heavily vegetated standing or slow-flowing brackish and fresh waters.
North America - Cape Fear Drainage in North Carolina to Southern Louisiana

A freshwater fish one of the most popular in the aquarium trade as they are easy to keep in various temperatures of water, are prolific live bearers as well as being very varied with their colourful and patterned tails.
They have also been introduced into various countries as a means of mosquito control.

02

How to identify

Behaviour
schooling

Tap any trait to see other fish that share it.

03

Habitat & where to find it

  • Country only · 1
LIVES IN

Found in schools, over heavily vegetated standing or slow-flowing brackish and fresh waters.

04

Adult photos 1

05

Discussion

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    ALL STAGES
    FOR THE MARINE-BIOLOGY CURIOUS

    Deep dive

    Taxonomy

    1. kingdomAnimalia
    2. phylumChordata
    3. classTeleostei
    4. orderCyprinodontiformes
    5. familyPoeciliidae
    6. genusHeterandria
    7. speciesHeterandria formosa Girard, 1859

    SourcesWoRMSFishBase

    06

    More in the family

    Rivulines-Killifishes-Live Bearers (Poeciliidae)