1、彻底清淤 有些池塘多年没有清淤,塘泥厚,池水过浅,对鱼类生长不利。一般垂钓鱼类品种以鲤、鲫为主,这两种鱼又是底层鱼类,喜欢贴泥游动,容易使水混浊,再加上放养密度过大,鱼又不易上钩。因此,在囤养之前必须清除一部分淤泥。放养鱼后5～10个月,每隔10～15天用生石灰溶水泼洒一次,按每667平方米平均水深1米施用生石灰8～10千克,既可改良水质,又可防治鱼病。 1, Thorough dredging Some ponds have not been dredged for many years, thick ponds and shallow ponds are unfavorable to fish growth. Common fishing fish species to carp, crucian carp-based, these two kinds of fish are the bottom of the fish, like the muddy swimming, easy to muddy water, coupled with the stocking density is too large, the fish are not easy to hook. Therefore, some sludge must be removed before stocking. 5 to 10 months after the stocking fish, every 10 to 15 days with lime sprinkling time, according to an average depth of 667 square meters 1 meter lime 7 to 10 kg, can improve water quality, but also prevent fish disease.