Zebrafish

The Zebra danio

The zebrafish (Danio rerio) is a freshwater fish native to India. It is often sold under the name zebra danio.

In the aquarium

The zebrafish is a peaceful fish and can be kept in a community tank.^[1] They can be kept in a temperature of 19–27°C. They grow to about 5 cm.^[2]

Zebrafish happily eat flake foods and bloodworm.

Stages of zebrafish development. Photos to scale except adult, which is about 2.5 cm (1 in) long.
A leopard danio (danio rerio) in a home aquarium
Zebrafish chromatophores, shown here mediating background adaptation, are widely studied by scientists.
A zebrafish pigment mutant (bottom) produced by insertional mutagenesis. A wild-type embryo (top) is shown for comparison. The mutant lacks black pigment in its melanocytes because it is unable to synthesize melanin properly.
FDA research used Zebrafish to show the effects of ketamine on neurological development.
The development of a single zebrafish retina captured on a light sheet microscope approx. every 12 hours from 1.5 days to 3.5 days after birth of the embryo