1, feeding environment. To keep crabs at home, you can choose a relatively spacious pool with a certain depth to prevent crabs from escaping, which can be a cement pool or a larger plastic basin. Spread a layer of mud about 10 cm and river sand about 5 cm in the pond where crabs are raised. You can go to the river or lake to get some sand or buy it online. If you plan to keep crabs at home for a long time, you can also plant some aquatic plants that are easy to survive in the pool, such as hydrilla verticillata, Sophora alopecuroides, Elodea japonica, etc., which can not only purify the feeding water quality, but also serve as bait for crabs to eat.

2. Feeding management. (1) In the process of feeding, animal baits such as red worms, dried shrimps, snails and mussels can be fed, supplemented by plant baits such as aquatic plants, pumpkins and potatoes, and the crabs will grow better if they are fed 1 time in the morning and evening. (2) On the issue of changing water, it is suggested that the water should be changed every three days. After changing water, a proper amount of quicklime can be poured to sterilize it in time.