Blue Double Tail Halfmoon

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Blue Double Tail Halfmoon

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It is a high-resolution picture of a blue double tail halfmoon. Double-tail is one of my favorite types of Betta fish. The main characteristic of double tail Betta is its caudal tail split in two equal lobes rather than one. Based on several Betta fish facts Betta fish is a highly territorial fish, so, never put two male fish in the same tank or aquarium.