1. Shrimp Pond Condition: The selected shrimp ponds with mixed mud and shrimp should be firstly drained and irrigated, equipped with a water intake and sluice gate, and equipped with a water pump to prevent the tidal wave from being used when the tidal wave can not be used. The shrimp pond requires its coating to be smooth and leeward. Xiangyang, flat bottom, with an area of ​​5 to 10 acres is appropriate.
2. Bottom quality requirements: The main soft clay, containing a small amount of sandy, the best surface mud thickness of 5 ~ 10cm is better.
3. Water quality requirements: seawater specific gravity 3‰ or more, pH value 7.8~9.0; water transparency 30~50cm; ammonia nitrogen content 0.6mg/L or less; bottom hydrogen sulfide content 0.01mg/L or less; chemical oxygen demand COD 6mg/ L below.
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