Hairy crabs cannot survive in water with low oxygen content. If you put hairy crabs in dead, oxygenated water, they will die after about 4 hours because of low oxygen content. If oxygenated, the storage time can be longer.

Put the hairy crabs into a big container, add about half a bucket of water, and then insert the aerator into the water to keep the oxygen in the water. Hairy crabs can be kept for more than 3 days, and the breeding time can be longer if small fish, shrimp, egg white and other foods are added.

You can also put the hairy crabs in a deep basin and put some water, so that the crabs can't breathe out of the water and are not easy to lack oxygen.

Extended data:

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

The carbohydrate content of hairy crabs is very low, so protein is consumed during storage. Therefore, if it is stored for a long time, the protein in hairy crabs will lose a lot 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 unhealthy substances. So it's best to buy it now, so that the meat is fat and healthy. Hairy crabs are very active You can sprinkle some water directly after eating in a day or two and put it in a cool and dark place.