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How to distinguish carp from crucian carp?
Carp and crucian carp are generally distinguished by mouth, body length, fins and color.

1. Look at "Beard"

Carp has two pairs of small "beards" like cats in its mouth. Of course, they are not beards, but noses and beards, but the mouths of crucian carp are not.

Pay attention to your words.

Carp's lips are very rich, and there is a lot of meat at a glance, but carp's lips are thin and there is no meat.

Look at the scale

The scales of crucian carp have obvious lateral lines. The scales of crucian carp are big and round, but they are not as neat as crucian carp.

Look at the color

Carassius auratus has a blue-brown back and a silver-gray abdomen. Carp is gray-black, blue-yellow below the lateral line, white to the abdomen, and a little black on the dorsal fin.

Look at the body length

Carp is slightly larger, generally 30 ~ 40 cm long, flat left and right, and round abdomen; The back is slightly raised in front of the dorsal fin; The mouth is horseshoe-shaped; There are 1 pairs between the snout and the jaw, and the length of the latter is twice that of the former. The branchial stalk is short and has pharyngeal teeth. Carassius auratus is generally15 ~ 20cm long, with flat side, bulging back and high and wide abdomen. The head is short and small, the kiss is round and blunt, there is no kiss and jaw, the gill rake is thin, and there are pharynx teeth. The scales are large and the lateral lines are obvious.