二、鱼病的诊断 正确诊断鱼病是治好鱼病的关键,因为只有诊断正确,才能做到对症下药,取得好的治疗效果。当发现鱼的活动出现不正常现象时,首先需进行现场调查,一是对池塘周围环境和水质进行检查,看是否由水质变化引起鱼发病。二是可以根据病鱼的活动情况初步确定鱼病原 Second, the diagnosis of fish disease The correct diagnosis of fish disease is the key to cure fish disease, because only the diagnosis is correct, in order to achieve the right remedy and achieve good therapeutic effect. When the fish is found abnormal activities, the first need to conduct a site survey, one is to check the environment and water quality around the pond to see whether the water quality changes caused by fish disease. Second, the fish can be initially identified according to the activities of diseased fish