bettas
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- The Siamese fighting fish (Betta splendens), also known as the betta (particularly in the US) and simply as the fighter, is a popular species of freshwater aquarium fish. The name of the genus is derived from ikan bettah, taken from a local dialect of Thailand (Siam). Betta is . ...
- (BETTA) New Electricity Trading Arrangements (NETA) is the name of the system under which electricity is traded in the United Kingdom's electricity market .
- (BETTA) The British Electricity Transmission and Trading Arrangement introduced in 2005 covering England, Wales and Scotland, replacing NETA which did not cover Scotland.