1, identified from the body shape. Farmed fish are short and fat, while wild fish are slender; Because farmed fish have enough food and little exercise, they gain weight instead; However, the food source of wild fish is unstable and it is often killed, so the wild fish keep running away for survival, and the exercise is particularly large, which will cause the wild fish to be slender.

2. Judging from fish scales. Remove fish scales before braising; At this time, it should be noted that wild fish scales are difficult to scrape off, while cultured fish scales are easy to scrape off; Because healthy fish exercise a lot, the scales grow strong; The scales of farmed fish are soft and easy to remove.

3. Judging from the color of mouth and fish belly. Generally, farmed fish are black in mouth and abdomen, and wild fish are yellow or white; Because the water in the fish pond is not so clear, some are black; Wild fish live in relatively large Hanoi, and the water quality is clear, so the color of wild fish's mouth is yellow or white.

4. From the meat quality. Wild fish are firm, chewy and delicious; The meat quality of cultured fish is loose, the chewing head is poor, and the taste is not so delicious; Because wild fish often exercise, have less body fat, strong muscles and live in clean water, the taste made by wild fish is delicious.

5. From the price point of view. Generally, wild fish are more expensive than farmed fish. A kilo is about 1-2 yuan; Fish dealers sometimes mix farmed fish with wild fish and sell them at high prices, so be sure to look carefully and don't buy farmed fish at high prices and low prices.