1. Pond: The pond is regular, the dyke is firm, and the bottom is flat and has strong water retention. The silt thickness does not exceed 20 cm, and the area is 10-20 mus.
2. Water source: sufficient water quantity, easy injection and drainage, no water pollution, PH value between 7.5-8.5.
3, water depth: pond water depth of 1.5-2 meters.
4. Power Supply: Prepare the power generators and prepare the diesel generators where there are frequent power outages.
5. Oxygen-increasing equipment: When the output per acre exceeds 500 kg, an aerator shall be equipped, and an average of 3 kilowatts of aerators per 7.5 mu shall be provided.
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