2.改吸深層水為吸淺層水。用抽水機給魚池加注新水時，通常是將抽水管插入水下1米mi或huo更geng深shen處chu，所suo吸xi注zhu的de是shi深shen層ceng水shui。這zhe種zhong水shui有you機ji質zhi含han量liang高gao，溶rong氧yang含han量liang低di
，水shui溫wen也ye偏pian低di
，注zhu入ru魚yu池chi後hou
，不bu利li魚yu的de生sheng長chang發fa育yu。因yin此ci，要yao改gai吸xi溶rong氧yang豐feng富fu的de淺qian層ceng水shui，即ji將jiang吸xi水shui管guan插cha入ru水shui下xia30厘米即可。

 

    3.gaishuiliuzhichongweixiechong。bushaoyangyuhuzaiweiyuchijiazhuxinshuishi，bachoushuijishuiguanjiazaichigengzhongjian，zhijiexiangchizhongchongshui，shixinzhurudeshuiheyuanlaiyuchizhongdejiushuiyishinanyihunhejunyun
，zengyanghetiaojieshuizhibuxunsu。gaiweixiechonghou，xinzhurudeshuiliurongyigaibianfangxiang，jiakuaiyuyuchizhongjiushuihunhe，tigaozhushuixiaoguo。

 

    4.改水流直落為板落。向魚池加注新水，如果水流直接從高處落下衝水池底，由於衝入的水流
、水量都較大，會將沉積在池底的飼料殘渣、排pai泄xie物wu及ji汙wu泥ni等deng衝chong翻fan起qi來lai

，甚shen至zhi會hui在zai池chi底di衝chong出chu一yi個ge凹ao塘tang
，造zao成cheng池chi埂geng塌ta陷xian。為wei防fang止zhi這zhe一yi現xian象xiang發fa生sheng
，可ke在zai水shui管guan下xia部bu落luo水shui處chu放fang置zhi一yi固gu定ding木mu板ban
，使shi注zhu入ru的de新xin水shui落luo在zai木mu板ban上shang

，濺jian起qi水shui花hua
，提ti高gao注zhu入ru新xin水shui的de溶rong氧yang量liang。