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How large can an alligator gar grow?

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The alligator gar (Atractosteus spatula) is a member of the holostean group of fishes and is recognized as one of the largest freshwater fish species in existence.1

While some sources note that these fish typically attain lengths exceeding 7 feet and weights over 150 pounds, they are capable of growing even larger, reaching lengths of approximately 3 meters (10 feet).21