——选择蟹池。一般选择5～15亩的池塘,池深2～2.5米,坡比1:2.5～1:3.0。要求排灌方便,水质清新、无污染、池塘保水性好,水深在1.5米左右,水草茂盛。如果没有水草,可人工种植一些菹草、芦草、浮萍、水葫芦等,水草覆盖面积应占全池水面的1/3～1/2。——修建防逃设施。一般常用的有:用规格为70×180厘米的 - Choose crab pool. Generally choose 5 to 15 acres of ponds, pool depth 2 to 2.5 meters, slope ratio of 1: 2.5 to 1: 3.0. Requires convenient irrigation and drainage, fresh water, no pollution, good water retention ponds, water depth of about 1.5 meters, lush plants. If there is no aquatic plants, some plants such as hemlock, reed grass, duckweed and water hyacinth can be artificially planted. The covered area of ​​aquatic plants should account for one-third to one-half of the total pond water surface. - Build anti-flee facilities. Commonly used are: with a specification of 70 × 180 cm