1, mandarin fish meat is tender: mandarin fish often feed on other fish or shrimp. When preying, mandarin fish will spit out the bones in the food and leave only the meat in the belly. Besides, mandarin fish has thick skin and tight meat, and there are no thorns in the fish, which is easy to digest.

2. The culture cost of mandarin fish is high: because mandarin fish feed on live fish and shrimp, the culture cost is high.

3. Decrease in the output of mandarin fish: feed fish and diseases of mandarin fish lead to decrease in the output.

Extended data:

Shape difference between mandarin fish and perch

Perch: It is long, with a flat side, a large mouth, a lower jaw longer than the upper jaw, small teeth, fine serrations at the rear edge of the anterior branchial operculum, rough skin, scales that are not easy to fall off, bluish gray on the dorsal side, gray on the ventral side, and black spots on the lateral side and dorsal fin spines.

Mandarin fish: tall and flat, with a large mouth, the lower jaw is obviously longer than the upper jaw, the head is scaly and the scales are small, and the dorsal fin is divided into two parts, the front is a hard thorn and the back is a soft fin. The body is yellow-green, the abdomen is gray-white, and there are irregular dark brown spots and patches on the side.