Emerald green betta

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Betta smaragdina
Betta smaragdina pair1.jpg
Scientific classification edit
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Anabantiformes
Family: Osphronemidae
Genus: Betta
B. smaragdina
Binomial name
Betta smaragdina
Ladiges, 1972

The emerald green betta or blue betta, Betta smaragdina, Thai: ปลากัดเขียว or ปลากัดอีสาน is a species of betta fish native to Thailand and Laos, where they are found in the basins of the Mekong, Chao Phraya river mostly found at mun and Chi rivers in Isan region, Thailand This species grows to a length of 7 cm (2.8 in). They get their green and blue colors due to refraction and interference of light that come from hexagonal crystals that are less than .3 to .5 miera.[2] This species is also found in the aquarium trade.[3]



  1. ^ Vidthayanon, C. 2012. Betta smaragdina. In: IUCN 2013. IUCN Red List of Threatened Species. Version 2013.2. <www.iucnredlist.org Archived June 27, 2014, at the Wayback Machine>. Downloaded on 22 March 2014.
  2. ^ Goodrich, H. B.; Mercer, Rowena N. (1934). "Genetics and Colors of the Siamese Fighting Fish, Betta Splendens". Science. 79 (2049): 318–319. Bibcode:1934Sci....79..318G. doi:10.1126/science.79.2049.318. ISSN 0036-8075. JSTOR 1658774. PMID 17738688.
  3. ^ Froese, Rainer and Pauly, Daniel, eds. (2014). "Betta smaragdina" in FishBase. February 2014 version.

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