The pond water depth is maintained at 0.6-1.5 meters all year round, the depth of water varies from place to place, the shallowest place is 10cm, the pond can be built a number of slightly higher than the water surface of the mound, i.e., the island of the crab island, the island can be transplanted with aquatic plants, the pond should not be too steep, the slope than the general 1:1.5 or less, but also the construction of artificial caves. Generally half a month before the release of seedlings with quicklime pond disinfection, the amount of 75 kg per mu.

2, transplantation of water plants

The types of water plants are mainly duckweed, red river, water hyacinth, water flora, black algae, goldfish algae, bitter grass, water peanuts, etc., and pay attention to the transplantation of disinfection and prevention of pests. Escape prevention facilities are mostly plastic film, there are also cement boards, depending on their respective situations.

3, put the seedling density

from the field back to the seedling can not be directly into the pool, should be soaked in water for 2-3 minutes, take out into the set for 10 minutes, and so repeat 2-3 times, to be the young crabs gradually absorb enough water and adapt to the water temperature, put into the pool, you can improve the survival rate. The density can be controlled within 1500 crabs/mu, with specifications of 120-150 crabs/kg of button crabs. If the conditions are poor or to raise shrimp can be appropriate to reduce the amount of seedling release.

4, feeding management

Crab feeding method like pond fish, to do "four look at the four", that is, look at the season, look at the weather, look at the water quality, look at the crab activity, time, point, quality, quantity.