由于养蟹效益显著高于养鱼，不少养鱼池塘被改作养蟹。但原养鱼池塘养蟹要做好“六改”。一、淤泥深政浅原养鱼池淤泥都比较深而肥。过深太肥的淤泥对养鱼不利，对养蟹更有害，必须加以改造清除，仅留10厘米左右栽培水草，保证清除病害，水质清新，水草又能生长茂盛。清除的淤泥 As the benefits of crab farming was significantly higher than fish farming, many fish ponds were changed to crab. However, the original fish pond crabs to be done “Six changed ”. First, the shallow depth of mud silt mud shallow governance are relatively deep and fat. Too deep fat too muddy fish on the negative, more harmful to crabs, must be reformed and cleared, leaving only about 10 cm of cultivated plants, to ensure the removal of disease, fresh water, plants can flourish. Clear silt