FreshwaterBrackish
Least killifish
Heterandria formosa
Poeciliidae, Poeciliinae
Facts
Characteristics
- Length
- Up to 3.6 cm
- Body shape
- Streamlined
Care
- Group
- Missing
- Smallest aquarium
- 4 liters
- Diet
- Missing
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Behavior
Water values
Smallest tank
Range
Videos
Heterandria formosa (Least Killifish) Care and Breeding: One of The *Tiniest* Fish in The WORLD!
Prime Time AquaticsMay 20, 2020
World's Smallest Livebearer! Heterandria Formosa
Aquarium Co-OpJun 4, 2016
More about the species
Description
Adults inhabit heavily vegetated standing to slow-flowing fresh and brackish water. They feed on worms, crustaceans and plant matter. A truly viviparous fish.
Other names
Other scientific names
- Girardinus formosus
In other languages
- Dvergtannkarpe
- Dvärgtandkarp
- Dværgtandkarpe
- Kääpiöhammaskarppi
- Midget Livebearer, Mosqu
Articles
All articles
How to set up a North American aquarium5 min read
Streams and ponds in North America are often cool. How to set up an aquarium without a heater, with pygmy sunfish, shiners and darters.
How to add new fish4 min read
From the store to the tank: how to get the fish used to your water, why you should add only a few at a time, and what to watch for in the first few days.
Quarantine for new fish3 min read
Why new fish should live in a tank of their own for a few weeks before they move in, what you need, and what to look for.
Ich (white spot)4 min read
The most common disease in aquarium fish. How to recognize it, why it shows up, and how to get rid of it.