Keep the mandarin fish fresh, don't slaughter it, just put it in a fresh-keeping bag and freeze it, so it can be stored for about 1 month without deterioration. Or slaughter the fresh mandarin fish, wash it, evenly coat it with fine salt, wrap it with plastic wrap and store it in cold storage, so that the freshness will not be lost in 12 hours. Mandarin fish contains protein, fat, a small amount of vitamins, calcium, potassium, magnesium, selenium and other nutrients. Its meat is tender and easy to digest. For children, the elderly and people with weak body and poor digestive function of the spleen and stomach, eating mandarin fish can not only replenish deficiency, but also do not have to worry about digestive difficulties. Mandarin fish is low in calories and rich in antioxidants, which is an excellent choice for ladies who are greedy for food, want beauty and are afraid of obesity.