The predatory carp (Chanodichthys erythropterus), also known as the redfin culter[1] or skygazer, is a species of ray-finned fish belonging to the family Xenocyprididae, the East Asian minnows or sharpbellies.

This species ranges from the Amur River south to Taiwan and the Red River, as well as Lake Buir in Mongolia.

[3] It reaches 102 cm (3 ft 4 in) in length and 9 kg (19 lb 13 oz) in weight.

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