Siamese fighting fish
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The Siamese fighting fish, commonly known as the Siamese fighter, or locally as the betta, is a freshwater fish native to Mainland Southeast Asia, namely Cambodia, Laos, Myanmar, Malaysia, Thailand, a
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A red "plakat" male
Female, showing the ovipositor tube
Rice paddies are believed to have been the first point of contact between bettas and humans.
Anabantoidei
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The Anabantoidei are a suborder of anabantiform ray-finned freshwater fish distinguished by their possession of a lung-like labyrinth organ, which enables them to breathe air. The fish in the Anabanto
Siamese fighting fish
…territorial toward one another in confined spaces. Bettas are exceptionally tolerant of low oxygen levels and poor water quality, owing to their special labyrinth organ, a characteristic unique to the suborder Anabantoidei that allows for the intake of surface air. In addition to its worldwide popularity, the Siamese…
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Labyrinth organ of a climbing perch (Anabas testudineus)
A male Siamese fighting fish, Betta splendens, is building a bubble nest.
The giant gourami, Osphronemus goramy, is often raised in floating cages in central Thailand.