1. In order to build a home in a river or pond, wild eels must make a deep hole, which is deep enough to survive in dry weather, so the head of wild eels is sharper than that of cultured eels.

Touch the tail of the wild eel with your finger, and its tail will wrap around your finger. Farmed eels don't.

3. The color of wild eel is bluish yellow or orange, and the patterns and spots on the abdomen and sides of the body are large and deep, while the abdomen of cultured eel is yellow or orange, and there are no spots or spots on both sides of the abdomen, and the patterns on the body are not deep.

4. After the wild eel is opened, its blood is dark red or dark red, thick and big. The cultured Monopterus albus is pink after blood division, with a small amount and clear water.

Wild eels are muscular, so it feels great to hold them in your hand. However, the cultured Monopterus albus is flabby and feels weak.

6. Wild eels are firm in meat, tough in taste, chewy, and have unique sweetness and fragrance. The cultured Monopterus albus is loose, sour and has a strange taste.