The Siamese fighting fish (Betta splendens), also known as the betta, is a freshwater fish native to Thailand and present in neighboring Cambodia, Laos, Malaysia, and Vietnam. While colloquially known and marketed in the global aquarium trade as the "betta", it is one of 73 species in the genus Betta. Siamese fighting fish are among the most popular and widely available aquarium fish in the world due to their varied and vibrant colour, diverse morphology, and relatively low maintenance. Mostly concentrated in Thailand's Chao Phraya river basin, bettas were discovered in the still waters of canals...
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