1, fish scales are different: red grouper is a kind of freshwater fish, with less fish scales in its body. There are many red fish scales and dry skin.

2. Different nutrition: Red grouper is a precious edible fish with delicious meat and high nutritional value. It contains a lot of nutrients such as protein, vitamins and minerals. After eating, it can supplement the nutrients lacking in the body, improve immunity and be beneficial to health. Eating red fish will cause itching and desquamation of the skin, and more serious patients will have chapped skin. It is not recommended to eat it.