Siamese Fighting Fish

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Related to Betta (Siamese Fighting Fish): Betta splendens

betta

betta (bĕtˈə) or fighting fish, small, freshwater fish of the genus Betta, found in Thailand and the Malay Peninsula. Best known is the Siamese fighting fish, Betta splendens. Mature males of this species are about 2 in. (5 cm) long. In its native waters B. splendens is drab with small fins, but several centuries of breeding have produced multicolored varieties with extremely enlarged decorative fins, highly prized as aquarium fishes. Males of this species are extremely aggressive, and in Thailand they are used in fighting contests lasting as long as six hours, with spectators betting on the outcome. Bettas thrive in shallow, sunlit areas with soft or sandy bottoms. Males secrete a mucous, with which they build bubble nests. After the female of a pair lays her eggs, both members transfer them to the nest, which is then guarded by the male. Several hundred young hatch out in 24 to 30 days. Like its relatives the gourami and the climbing perch, the betta is equipped to breathe air as well as water and must surface from time to time. It is classified in the phylum Chordata, subphylum Vertebrata, class Actinopterygii, order Perciformes, family Osphronemidae.
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The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Siamese Fighting Fish

 

(Betta splendens), a fish of the family Anabantidae of the suborder Anabantoidea (labyrinthic fishes). The fish is up to 8 cm long. The males, especially during the mating season, are brightly colored. Siamese fighting fish are found in the fresh waters of Southeast Asia (India, Thailand, and the Malay Peninsula). The male builds a nest out of air bubbles (foam) on the surface of the water; the female deposits the eggs on the bottom of the body of water, and then the male carries them in his mouth into the nest, where he guards them and subsequently the fry. The Siamese fighting fish easily reproduces in small aquariums (at temperatures of 25° to 30° C). Veiled and variegated forms of the fish are bred in aquariums; these forms include the red, cornflower blue, rose, blue, and green fish.

REFERENCE

Il’in, M. N. Akvariumnoe rybovodstvo. Moscow, 1968.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
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