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Best Answer: Usually common Betta's are very cheap. Ranging from $2.00 to $7.00, but they're are two very expensive breeds. The Western Blue devil is around $600.00 and the Marine Betta is about $70.00.
A crowntail betta, in the same family as halfmoon betta fish. Betta fish are beautiful and elegant pets. Often called Siamese fighting fish, Bettas are vibrant and can live from two to four years with the proper care. As small as they are, bettas need specific care. They are tropical fish with space and temperature requirements to stay healthy. If you are thinking about getting a betta, please do your research first. If you buy one from a general pet store, chances are you won't get the right advice about how to care for your fish.