1, judging from the time when the floating head began. From the evening to the dawn, the earlier the floating head is, the worse the situation will be. If the floating head occurs in the middle of the night, it indicates that the situation is particularly serious. If it occurs before the dawn and is eliminated after sunrise, it can be regarded as a normal floating head.
2, judging from the range of floating heads. If the fish only floats in the middle of the pond, it is a light-floating head. If the fish floating head expands to the shore, it involves the entire pond, which indicates that the situation is serious. If the floating head is at the upper tuyere, it means that it is a frivolous head, and vice versa is a serious floating head.
3, judging from the type of floating head. If only the tilapia or gifu are floating heads, it is a general floating head. If the floating heads of the chain, grasshopper and grass carp are heavy floating heads, such as carp floating heads, it is a serious floating head. If all the fish have floating heads, the breathing is accumulated and the swimming is weak. Grass carp The body is yellow, indicating that the pond will soon flood the pond.
4. Judging from the frightened performance of the fish. If the fish is frightened, the reflection quickly swims quickly to the bottom of the pool. After a while, it floats again. It is a frivolous head. If it is not reflected, it can be considered as serious.
In order to prevent the sudden occurrence of floating heads and the situation of floating heads, in addition to sticking to the two patrols in the morning and evening. When the weather is not normal, the number of patrols should be increased after 12 o'clock at night. If fish ponds are found jumping on the floating head near the pond, it means that the fish has floated its head in the middle of the pool; when it is illuminated with a flashlight, bubbles or splashes are found in the pool and the fish has already floated. You can also use the ear to hear the fish in the upwind mouth of the pond. If you hear the sound in the pond, the fish has already floated. The fish is alarming at the bottom of the pond. If you hear a sound in the pond, it means that it is not a floating head. It is the fish. Eat at night.
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