The blue danio, Kerr's danio or turquoise danio (Danio kerri), is a tropical fish belonging to the genus Danio in family Cyprinidae.
| Blue danio | |
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Scientific classification 
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| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Cypriniformes |
| Family: | Cyprinidae |
| Subfamily: | Danioninae |
| Genus: | Danio |
| Species: | D. kerri
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| Binomial name | |
| Danio kerri (Smith, 1931)
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| Synonyms | |
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Distribution and habitat
editThe blue danio is found on the islands of Langkawi and Ko Yao Yai in Malaysia.[citation needed]
Description
editIt 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
editThe 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 73 – 77 °F (23–25 °C).
Mating
editBlue danios are egg-scatterers that spawn over coarse gravel beds. They will typically spawn at the first light of day.[citation needed] The eggs will hatch in about 36 hours.
Etymology
editThe taxonomic name honors A.F.G. Kerr, who collected the first specimen on Ko Yao Yai in 1929.
References
edit- ^ Vidthayanon, C. (2012). "Danio kerri". IUCN Red List of Threatened Species. 2012: e.T180729A1656514. doi:10.2305/IUCN.UK.2012-1.RLTS.T180729A1656514.en.
- Froese, Rainer, and Daniel Pauly, eds. (2004). Danio kerri in FishBase. April 2004 version.
- "Turquoise Danio". Drs. Foster & Smith's LiveAquaria.com. Retrieved 15 December 2004.