Hairy crab is a kind of freshwater crab, which lives in a freshwater environment. They have poor adaptability to salt and are not suitable for seawater culture. When put into sea water, the cells in hairy crabs will suffer from excessive water loss, resulting in water imbalance, which will cause physiological discomfort. In addition, environmental factors such as water temperature, salinity and pH value in seawater are also related to the survival and reproduction of hairy crabs, which are quite different from the freshwater environment needed for their lives, so seawater culture is not suitable for them.

Generally speaking, hairy crabs live in natural environments such as freshwater lakes, rivers and rice fields, where they can get all kinds of nutrients they need and keep healthy. Therefore, if you want to breed hairy crabs, you should choose fresh water environment to provide suitable water quality and breeding conditions.