Thai National Parks

Species of Thailand

Blue danio

Binomial name: Danio kerri, Hugh McCormick Smith, 1931

The blue danio or Kerr's danio (Danio kerri) is a tropical fish belonging to the genus Danio in family Cyprinidae.

Distribution and habitat

The blue danio is found on the islands of Langkawi and Ko Yao Yai in Malaysia.


It is a blue-colored, deep-bodied danio with several pinkish/gold lines from tail to gills which may or may not be continuous, over a powder blue side.

In the aquarium

The blue danio is a peaceful, active schooling fish, so is usually kept in groups. They prefer a well-planted environment, but still need plenty of space to school. Blue danios prefer water with a 6.5 – 7.0 pH, a water hardness of 8 – 12 dGH, and a temperature range of 73 – 77°F (23–25°C).


Blue danios are egg-scatterers that spawn over coarse gravel beds. They will typically spawn at the first light of day. The eggs will hatch in about 36 hours.


The taxonomic name honors A.F.G. Kerr, who collected the first specimen on Ko Yao Yai in 1929.

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Scientific classification

Danio kerri


  • Brachydanio kerri, Hugh McCormick Smith (1931)

Conservation status

Least Concern (IUCN3.1)

Least Concern (IUCN3.1)

Range map of Danio kerri in Thailand

Important note; our range maps are based on limited data we have collected. The data is not necessarily accurate or complete.

Special thanks to Ton Smits, Parinya Pawangkhanant, Ian Dugdale and many others for their contribution for range data.

Contribute or get help with ID

Please help us improving our species range maps. To add a new location to the range map we need a clear image of the specimen you have encountered. No problem if you do not know the species, we will do our best to identify it for you.

For the location, please provide the district name or the national park/ wildlife sanctuary name.

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