2, temporary pool preservation of crabs: the best way is to do their own bathtub as a temporary pool, first let out to the crabs to enjoy: because the bathtub four walls are smooth, the crabs can not escape, and then gently poured into the bathtub crabs, water to just buried crabs, if the crabs to the eight-foot stand up on the surface of the water to breathe, and according to the time of storage and the number of flavor cast a small amount of small fish and shrimp, with this method of crab storage crabs can generally be used to store crabs, and the number of crabs can be used to store crabs. method crab storage crabs can generally be more than 7 days or longer, good quality crab storage survival rate of up to 95% or more.