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siamese fighting fish
The Siamese fighting fish (''Betta splendens''), also sometimes colloquially known as the Betta, is a species in the Gourami family which is popular as an aquarium fish. They are called ''pla-kad'' (biting fish) in Thai or ''trey krem'' in Khmer. They are a highly aggressive fish and it is unwise to house two males together - and even the females may kill each other. They can do well with calm, dully-colored bottom-dwelling species such as Corydoras catfish. Steer clear of other popular freshwater tankmates such as African Dwarf or Clawed Frogs, as they have poor eyesight and can mistake the Betta's flowing tail for a worm or other prey; even small tetras will nip if not kept in a large enough school.
These species are native to the Mekong basin of Laos, Cambodia, Vietnam and Thailand The fish can be found in vast standing waters of canals, rice paddies and floodplains.
In January 2014 a large population of the fish was discovered in the Adelaide River Floodplain in the Northern Territory, Australia. As an invasive species they pose a threat to native fish, frogs and other wildlife in the wetlands.〔
==Description==
''B. splendens'' usually grows to a length of about .〔 Although aquarium specimens are known for their brilliant colors and large and typically flowing fins, the natural coloration of ''B. splendens'' are generally dull green, brown and gray, and the fins of wild specimens are short, about the size of the B. Splendens plakat tail. In captivity, they have been seen with varying fin sizes and varieties and as well as observed coming in colors such as ''salamander'', ''mustard gas'', ''butterfly'', blue, red, white, black and many others.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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