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What is the biggest fresh water fish?


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One of the largest freshwater fish is the Arapaima a tropical fish of the Amazon basin; reaching sizes of up to 15 feet in length.

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The Arapaima (Arapaima gigas), also known as the Pirarucú or Paiche, is the world's biggest freshwater fish. Ask Away! ChaCha!

Answered by Chavonne S. -

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