1, with plenty of fresh water, try to approach the water quality of its living source, and change the water every two or three days (adjust the temperature to fly in winter, otherwise it will hibernate);

2, the food should be fresh, shrimp and fish, ham, cooked meat and rice should be clean, and a few stones should be placed at the bottom of the fish tank to facilitate crabs to breathe;

Fish tanks and stones should be cleaned regularly, and crabs should be scrubbed once every one to two weeks to prevent parasites.