鱼浮头现象是精养鱼池经常发生的,一般来说,白天鱼浮头清晰可见,但夜间观察鱼浮头就比较难了,特别在乌云满天,或者月暗星不亮的黑夜,池塘里如果发生了鱼浮头,或有暗浮头往往更难观察。现将我们生产中使用的一种简单观察方法介绍如下:即用手电 Fish floating phenomenon is often intensive fish pond, in general, during the day the fish floating head is clearly visible, but the night is more difficult to observe fish floating head, especially in dark clouds, or dark moon on the dark night, if the pond The occurrence of fish floating head, or dark floating head is often more difficult to observe. Now use a simple observation in our production methods are as follows: that is, with a flashlight