2, the snail will die in two to three days after cutting the tail, the snail can still spit sand during the survival period. But snails can not be stored for a long time after tail cutting, easy to deteriorate. It is recommended to treat the snail before tail cutting to make it spit sand. Buy home snails can use a vise to cut off the tail, with moss on it, brush off, clean, and then put it into a pot, pour in the right amount of water, drop a few drops of sesame oil, soak for 2 hours on it.