Zebrafish
Danio rerio
FishFreshwater
Danio rerio has an elongated, fusiform body with horizontal blue and silver stripes. It reaches up to 4 cm. It is a schooling and active fish that swims in groups. It is very hardy and adapts to various conditions. It breeds easily in the aquarium. Genetically modified varieties (GloFish) exist.
Recommended parameters
| Parameter | Recommended range |
|---|---|
| Temperature | 22–26 |
| pH | 6.5–7.5 |
| GH | 5–15 |
| KH | 3–8 |
| NO₃ | ≤ 20 |
| PO₄ | ≤ 0.5 |
Care
Difficulty1/5
Dietomnivore
Min. tank60 L
Min. group6
Adult size4 cm
Lifespan3 ans
Temperamentpeaceful
Care notes
Aquarium of at least 60 L for a school of 6 to 10 individuals. Neutral to slightly alkaline water (pH 6.5-7.5), soft to moderately hard (GH 5-15), temperature 22-26°C. They are omnivorous: accept flakes, pellets, artemia, and daphnia. A setup with plants and open swimming space is suitable. They are peaceful fish, compatible with many species. Breeding is simple: they spawn on a moss substrate.