Predatory carp
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The predatory carp (Chanodichthys erythropterus), also known as the redfin culter, is a species of ray-finned fish in the genus Chanodichthys. This East Asian freshwater cyprinid ranges from the Amur River south to Taiwan and the Red River, as well as Lake Buir in Mongolia. It reaches 102 cm (3 ft 4 in) in length and 9 kg (20 lb) in weight.