What is the cause of fish death in fish ponds, and when is the right time to kill insects in fish ponds?

Abnormal temperature: Generally, when the seasons change, the temperature change and the

What is the cause of fish death in fish ponds, and when is the right time to kill insects in fish ponds?

Abnormal temperature: Generally, when the seasons change, the temperature change and the temperature difference between day and night are relatively large, so the living space of fish will be disrupted.

Overfeeding: Pond culture must be fed scientifically. If the feeding amount is too large, it will easily lead to enteritis and death of fish.

No pond cleaning: fish farming must clean the pond, because the pond may contain some harmful bacteria or some enemy creatures, which will affect the survival of fish.

First, what is the reason for the dead fish in the fish pond?

1, abnormal temperature

The dead fish in the pond is probably caused by abnormal temperature. Generally, when the seasons change, if the temperature changes and the temperature difference between day and night is relatively large, the living space of fish will be disrupted, so that some upper-level fish will run to the middle and lower layers, which will lead to death.

2. Overfeeding

(1) Pond culture must be raised scientifically. If the feeding amount is too large, without control, it will easily lead to fish enteritis and the phenomenon of dead fish.

(2) Moreover, a large amount of residual bait will improve the nutrition of water, make the water quality worse, even lead to algae outbreak, and also lead to fish death.

3. Not as clean as the pond.

(1) Fish culture must be cleaned, because the pond may contain some harmful bacteria or some enemy organisms, which will affect the survival of fish.

(2) Generally, it is necessary to clean the pond with quicklime or bleaching powder. Fish can be raised every 1-2 weeks after the whole pond is flooded.

Second, when is it appropriate to kill insects in fish ponds?

1, use time

Insecticides can generally be carried out at the highest temperature in a day, such as noon on a sunny day.

2. Preventive measures

(1) To control the amount of pesticides, do not overuse them.

(2) If mixed use is needed, it is necessary to pay attention to whether there will be adverse reactions between mixed drugs. If there will be employment, you can't mix.

(3) After using pesticides for the first time 1 time, the interval must be about 3-5 days, and then make reasonable compensation for the first time 1 time according to the weather and other conditions.

(4) After killing insects, it is necessary to observe whether the fish is poisoned by floating head, jumping around and swimming around. If it happens, start the aerator and wash it with fresh water in time.