{{Short description|Species of fish}} {{Use dmy dates|date=May 2022}} {{speciesbox | image = Danio kerri.jpg | status = LC | status_system = IUCN3.1 | status_ref =<ref name="iucn status 20 November 2021">{{cite iucn |author=Vidthayanon, C. |date=2012 |title=''Danio kerri'' |volume=2012 |article-number=e.T180729A1656514 |doi=10.2305/IUCN.UK.2012-1.RLTS.T180729A1656514.en}}</ref> | taxon = Danio kerri | display_parents = 3 | authority = (H. M. Smith, 1931) | synonyms = *''Brachydanio kerri'' <small>H. M. Smith, 1931</small> }} The '''blue danio''', '''Kerr's danio''' or '''turquoise danio''' ('''''Danio kerri'''''), is a tropical fish belonging to the genus ''Danio'' in family Danionidae.
==Distribution and habitat== The blue danio is found on the islands of Langkawi and Ko Yao Yai in Malaysia.{{citation needed|date=November 2014}}
==Description== 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 are often kept in water with a 6.5 – 7.0 pH, a water hardness of 8 – 12 dGH, and a temperature range of {{convert|73|–|77|F|C}}.
==Mating== Blue danios are egg-scatterers that spawn over coarse gravel beds. They will typically spawn at the first light of day.{{citation needed|date=November 2014}} The eggs will hatch in about 36 hours.
==Etymology== The taxonomic name honors A.F.G. Kerr, who collected the first specimen on Ko Yao Yai in 1929.
== References == {{Reflist}} *{{FishBase_species_alt|ID=12066|taxon=Danio kerri|year=2004|month=April}} *{{cite web|title=Turquoise Danio|work=Drs. Foster & Smith's LiveAquaria.com|url=http://www.liveaquaria.com/product/prod_Display.cfm?siteid=21&pCatId=948 | access-date=15 December 2004 }}
==External links== *[https://web.archive.org/web/20090215122351/http://danios.info/fish/kerri.aspx Danio kerri] {{Taxonbar|from=Q1123820}}
Category:Danio Category:Fish described in 1931 Category:Fish of Thailand Category:Cyprinid fish of Asia