Hairy crabs can't live in water with too low oxygen content. If hairy crabs are kept in stagnant and oxygenated water, they will die because of too low oxygen content after about 4 hours. If oxygenated, the storage time can be longer.

Put the hairy crabs in a large container, add about half a bucket of water, and then insert the aerator into the water to keep the oxygen in the water. The hairy crabs can be stored for more than 3 days, and the culture time can be longer if food such as small fish, shrimp and egg white is added.

You can also put the hairy crabs in a deep basin and put some water in it, so that the crabs can not break out of the water and breathe, and it is not easy to suffer from hypoxia.

If the storage conditions of hairy crabs are not good, they will die for a long time, and a lot of substances such as histamine and cadaverine will appear in the body, which is harmful to the health. Therefore, it is best not to keep hairy crabs for a long time, and buy them back and eat them quickly.

The content of carbohydrate in hairy crabs is very low, so protein is consumed during storage. Therefore, if it is stored for a long time, protein in hairy crabs will be greatly lost, and the meat quality will not be full.

Hairy crabs should not be stored for too long, which not only affects the taste, but also easily produces substances that are not conducive to health. Therefore, it is best to buy and eat them now, so that the meat is fat and healthy.