为正确防治鱼病，需要对鱼病进行诊断。在没有专门仪器的情况下，用肉眼诊断鱼病的简便方法是：一看体表。病鱼身体两侧的肌肉以及鳍基部，特别是臀鳍基部，往往会充血，有时眼睛也充血。但充血情况不同，鱼病也有区别。例如：剥开皮肤，肌肉呈不同程度的点状充血，甚至全... For the correct prevention and treatment of fish diseases, fish diseases need to be diagnosed. In the absence of specialized equipment, the easy way to diagnose fish diseases with the naked eye is to look at the body surface first. Sick fish on both sides of the body muscles and the base of the fin, especially anal fin base, tend to congestion, and sometimes eyes also congestion. However, different congestion, fish diseases are also different. For example: peel the skin, muscle showed varying degrees of congestion, and even ...