Blue Danio

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{{Taxobox | color = pink | name = Blue Danio | status = Conservation status: Unknown | regnum = Animalia | phylum = Chordata | classis = Actinopterygii | ordo = Cypriniformes | familia = Cyprinidae | genus = Danio | species = D. kerri | binomial = Danio kerri | binomial_authority = (Smith, 1931) }}

The Blue Danio or Kerr's Danio (Danio kerri) is a tropical fish belonging to the Danio family (Cyprinidae). Originating from South-east Asia on the island of Koh Yao Yai in the Malaysian Peninsula, this fish is sometimes found in the fish keeping hobby. It is a blue colored, deep bodied Danio with serveral pinkish/gold lines from tail to gills which may or may not be continuous, over a power blue side.

The Blue Danio is a peaceful, active schooling fish that 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 among a course gravel bed. They will typically spawn at the first light of day. The eggs will hatch in approximately 36 hours.