Zebra Danio
Danio rerio · family Cyprinidae
Also: Zebrafish
Parameters
- Temperature
- 18–25 °C
- pH
- 6.5–8
- Hardness
- 5–19 °dGH
- Tank volume
- from 60 L
- Maximum size
- up to 5 cm
- Group size
- min 6, ideal 8
- Temperament
- Peaceful
- Swimming zone
- Top
- Difficulty
- Beginner
- Lifespan
- 3–5 years
Description
The zebra danio is one of the toughest and most active aquarium fish. It tolerates a wider temperature range than most tropicals, but that doesn't mean it can be kept in cold water long-term.
It's a model organism in developmental biology: the embryos are transparent, which is exploited in research.
Care
Activity
Danios constantly swim in the upper layer; the tank should be at least 60 cm long, otherwise there's no room to sprint.
Feeding
Versatile omnivore. Flakes + frozen or live food 2–3 times a week.
Compatibility
- Guppy
Poecilia reticulata
Compatible by parameters; the danios' activity can stress veil-tail guppies.
Good - Good
- Ideal
- Caution
- Caution
FAQ
- Можно ли держать данио в холодной воде?
- Данио переносит 18–22 °C лучше большинства тропических, но оптимум — 22–24 °C. В стабильно холодной воде иммунитет снижается.
Goldie editorial team
Practising aquarists with a combined 30+ years of experience · Biologists and editors, fact-checking against FishBase and Seriously Fish · Every piece is reviewed by a qualified ichthyologist before publication
Scientific board — ichthyologists and veterinarians
Ichthyologists and veterinarians with university degrees · Reference FishBase, Seriously Fish and peer-reviewed literature · Sign every reviewed article with their credentials shown
Sources
- FishBase: Danio rerio · FishBase · 2026-05-22
- Seriously Fish: Danio rerio · Seriously Fish · 2026-05-22