鱼病防治用药最常用的方法是泼洒。洒药时应避免用药过量、用错药物、施用没充分溶解的固体药物和阳光直射的中午施药等。精心操作,防止因用药不当造成鱼大批死亡。具体方法如下:　　1.药物剂量应按水体体积和泼洒浓度准确计算,绝不能随意增减用量,以免药量偏高或过低,发生 The most common method of prevention and treatment of fish diseases is spill. Sprinkle medicine should avoid overdose, with the wrong drugs, the application of inadequate dissolved solid drugs and direct sunlight at noon spraying and so on. Meticulous operation to prevent a large number of fish died due to improper use of drugs. Specific methods are as follows: 1. Drug dosage should be accurate calculation of water volume and spill concentration, must not be free to increase or decrease dosage, so as to avoid high or low dose occurs