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How to look after
Heterandria formosa
Mosquito fish, Dwarf livebearer
Girard, 1859

(Other members of the genus Heterandria)

ADULT SIZE: 5 cm

WATER CONDITIONS: Moderately hard and alkaline

TEMPERATURE RANGE: 18-30 C

FOOD: Feed Heterandria formosa small live-foods and fine grade dried foods

DISTRIBUTION: This species comes from USA

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AQUARIUM CARE: A very small fish, somtimes referred to (incorrectly) as the least killifish. It is not a killi of course, being a liveberer. It is found in Southeast USA amongst dense vegetation in smaller bodies of water.

BREEDING: Live young are laid a few at a time, daily, throughout the spawning period.

Have you bred Heterandria formosa? Why not fill in a breeding questionaire?, or examine existing Heterandria formosa breeding reports








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Fishkeeping Facts and Tips

Too many fish? Overstocked tanks stress the fish in many ways: competition for food and space, bullying from other fish, deterioration of water quality and increased concentration of disease vectors. A lightly stocked tank will always be easier to care for, with more stable water quality


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