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目前,养鱼生产中常用生石灰清塘,生石灰遇水会生成强磁性的氢氧化钙,使池水的pH值急剧上升至11～12,因此可杀灭野杂鱼、敌害生物和各种病原体,同时可增加水体中的钙离子含量,并对酸性土壤起到中合作用,是一种理想的清塘消毒药物。但距海岸带较近的盐碱地鱼池,其水体的碱度,硬度和pH值均比内陆淡水鱼池高得多,属于高碱度、硬水型水质,水中既不缺少钙离子,土壤也不呈酸性,因此,在清塘时不宜用生石灰,否则会使盐碱地鱼池的
At present, the commonly used quick lime cleaning ponds in the production of fish, lime with water will generate strong magnetic calcium hydroxide, so that the pH of the water bath rose sharply to 11 to 12, it can kill wild trash fish, predatory organisms and various pathogens , While increasing the water content of calcium ions, and acid soil play a role in cooperation, is an ideal Qing Tong disinfectant. However, the alkalinity, hardness and pH value of saltwater fish ponds close to the coast are much higher than those of inland freshwater fish ponds. They belong to the high alkalinity and hard water quality, and the water neither lack calcium nor soil Acidic, therefore, should not be used in the clear lime, otherwise it will make the saline pond fish ponds