The reasons for the death of the flower nail soaked in salt water are that the salt water concentration is too high, the flower nail is not suitable, the flower nail is not fresh, or the environmental temperature is too high, so the flower nail cannot survive. Soak the flower nail in salt water and add salt to make the flower nail spit out all the sand, which is convenient for cleaning and cooking. If the flower armor has not deteriorated, it can be eaten as soon as possible; Rotten or smelly can be discarded. Hua Jia is a mollusk, about 3 cm long, with an oval shell and light brown and purple edges.