If a snapper dies naturally, it should not be eaten no matter how long it has been dead. Healthy live-killed snappers are generally edible if no spoilage has occurred. When naturally dead snapper is on the verge of death, the protein structure in the body of the snapper will start to decompose, and the bacteria will multiply, which will produce a large amount of histamine, which is a kind of poisonous substance. Therefore, it is not recommended to consume snappers that have died naturally, no matter how long they have been dead. If the snapper is killed alive, if it is not consumed in time, it must be sealed and placed in the refrigerator for freezing, and can be consumed at your discretion if no deterioration occurs. it can be stored for 3-4 hours at room temperature of 25°C. If there is any odor, mucus or other contamination, the snapper should be kept in the refrigerator for 3-4 hours. If odor, mucus or other spoilage occurs, it should no longer be consumed. It is recommended to cook the food when it is as fresh as possible, and if it is not cooked in time, it should be sealed and placed in the refrigerator for freezing as soon as possible. If you have accidentally consumed spoiled food and become unwell, it is recommended to go to the hospital in time for medical treatment.