Least killifish
Heterandria formosa
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One of the world's smallest fish, from the southeastern United States. Despite its name, the least killifish is a poeciliid, a relative of the guppy, and a livebearer. It lives in still or slow, densely vegetated waters, fresh or brackish, and eats small invertebrates and plants.
- Scientific name
- Heterandria formosa
- Family
- Poeciliidae
Fact sheet
General
- Water
- Freshwater
- Group
- Fish
Taxonomy
- Family
- Poeciliidae
- Order
- Cyprinodontiformes
- Synonyms
- Girardinus formosus
Origin
- Native region
- América do Norte
Water
- Temperature
- 20–26 °C
- pH
- 7–8
- General hardness (GH)
- 5–20 °dGH
Size and lifespan
- Adult size
- 2 cm
Behavior
- Temperament
- Peaceful
- Social life
- School
- Swimming level
- Middle
- Diet
- Omnivore
Care
- Care difficulty
- Easy
Reproduction
- Breeding strategy
- Livebearer
Conservation and trade
- IUCN status
- Least concern (LC)
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