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Zebra danio (Danio rerio)
AI illustration, not an ID reference

Zebra danio

Danio rerio

FishFreshwater

Care level
Easy
Temperament
Peaceful
Recommended tank
60 L
Maximum size
5 cm
Temperature
18–25 °C
pH
6.5–7.5
Group size
≥ 6
Diet
Omnivore

Care at a glance

The zebra danio is a tireless swimmer that brings the upper layer of the tank to life. It is hardy, tolerant and one of the few popular species genuinely comfortable in cooler water, which means it even thrives in an unheated indoor aquarium.

Such an active school mainly needs length: better a long tank with open swimming space than a tall planted showcase. Keep the tank well covered, because a danio at full speed will clear the rim with ease. Beyond that it is a contented omnivore that shrugs off most beginner mistakes.

Good to know

  • Known jumper — cover the tank

Related species

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Values are mainstream hobbyist guidance, not gospel — always watch what your own animals need.