River crabs have a very mixed diet, in natural conditions to eat water plants, humus, but also like to eat snails, worms, insects, small fish and shrimp, etc., but in the lack of food in the environment, will be similar to each other, in addition to the river crabs like to inhabit in the water quality is clear, rich in aquatic plants, breeding can be selected as a breeding site ponds, and regularly check the water quality.

Wild river crabs mainly eat water plants, animal carcasses, small fish, shrimp, insects, etc., while artificially cultured river crabs can eat snails, yellow mealworms, earthworms, bean cakes, peanut cake and other food, and every time you give food to the river crabs, you need to put it in a fixed position, so as to avoid food entering the water and contaminating the water quality.

River crabs like to live in clear water, water plants in rich freshwater lakes, rivers, and their habitat is divided into seclusion and burrowing, generally in the tidal rise and fall of the river or other waters of the shore area, river crabs like to burrow, and in the good quality of the water, the water surface of the lake, river crabs like to seclusion in the water plants and the bottom of the mud.

In the process of breeding river crabs, you can choose a pond as a breeding site, and build a vegetation-rich open mound in the pond to provide rest and hiding areas for river crabs, in addition to regularly checking the color of the water body, if the water quality becomes green, turbid and with a bad smell, you need to replace the river crabs in time with good water quality.