鱼苗下塘是养鱼的关键环节。不少养鱼户因忽视水温、水质、气候和放养时的操作细节，轻则造成鱼苗不同程度的死亡，重则放养失败，经济损失较大。故应从以下几个方面引起注意。一、鱼苗下塘前要检查清塘药物的毒性是否消失．如果清塘药物的毒性未完全消失，就会造成鱼苗中毒死 Fish pond under the pond is the key to fish. Many fish farmers ignore the water temperature, water quality, climate and stocking details of the operation, ranging from the fry caused varying degrees of death, while the stocking failure, greater economic losses. Therefore, attention should be drawn from the following aspects. First, the pond before the pond to check the toxicity of clear pond drugs disappear. If the toxicity of Qing Tong medicine has not completely disappeared, it will cause the poisoning of fry