1, first of all, in terms of color: the color of wild crucian carp is generally white, and it is yellowish when viewed from the side against the bright light. Pure cultured crucian carp is dark black. There is also a semi-cultured crucian carp between cultured and wild, which is a little white and should be black and gray.

2, and then from the body shape: wild crucian carp is relatively small, with a high back and a slender body. The cultured crucian carp is relatively big, fat in shape and big and soft in stomach. Semi-cultured crucian carp is also large, but its body is fat and its back is smooth.

3. Secondly, from the mouth and gills, the mouth of wild crucian carp is white or light green, but cultured crucian carp will not have this color. The gills of wild crucian carp are fresh, light red and full of luster. Cultured crucian carp contains certain hormones in the feed, and the color of the fish's cheeks is black and red, with a dull luster.

4. If you can't clearly judge whether it is wild crucian carp or cultured crucian carp by the appearance of the fish, you can only judge from the taste of the meat when eating. The fish of wild crucian carp has a tight and delicate taste and a Q-bomb feeling, while the fish of cultured crucian carp has a soft taste and is somewhat "draining" when eating.