Heterandria formosa (known as the least killifish, dwarf topminnow, mosqu or midget livebearer) is a species of livebearing fish within the family Poeciliidae. This is the same family that includes familiar aquarium fishes such as guppies and mollies. Heterandria formosa is not as commonly kept in aquaria as these species. Despite the common name "least killifish", it belongs to the family Poeciliidae and not to one of the killifish families. H. formosa is one of the smallest fish species; the 1991 Baensch Aquarium Atlas listed it as the seventh smallest fish in the world, and as of 2006 it remains the smallest fish species found in North America.
From Wikipedia, under CC BY-SA 4.0.
Is it venomous or poisonous?
We have no record of Least Killifish being toxic, poisonous or venomous. That is not proof that it is safe. Never eat, touch or handle a wild plant, mushroom or animal on the strength of an identification; ask someone qualified.
Easily confused with
- Hypseleotris compressa
- Hypseleotris klunzingeri
- Phalloceros caudimaculatus
- Lucania parva
- Leptolucania ommata
Classification
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Actinopterygii
- Order
- Cyprinodontiformes
- Family
- Poeciliidae
- Genus
- Heterandria
- Species
- Heterandria formosa
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