Treatment of fish flooding pond

Treatment of fish flooding pond

Whenever the season changes, when it is sunny and overcast, the air pressure often decreases and the dissolved oxygen in the water decreases. At this time, not only the amount of fertilizer applied on that day is appropriately reduced, but also the fish activities are closely watched to prevent the fish from dying in the floodpond when the floating head is serious. Once a fish is found to have a serious floating head, it must be rescued in an emergency. Under the condition of no aerator, the following soil methods can be used:

1. Flush a large amount of fresh water into the pond.

two。 Sprinkle yellow mud salt water into the pond, mix well with 4 kilograms of yellow mud and salt per mu, then sprinkle it all over the pond.

3. The pond is drained and filled with fresh water.

4. Sprinkle alum water to the pond, use 1 kg alum per mu, crush it into noodles, add the right amount of water and sprinkle the whole pond.

5. Use 15 kilograms of quicklime per mu, dissolve into pulp and sprinkle the whole pool.

6. Use 2 kilograms of Shiyi per mu, dissolve it with water and sprinkle it all over the pool.

The above methods are used for temporary rescue, but in order to fundamentally prevent and control the floating head of fish, the following measures should be taken:

① often adds fresh water to the pond (not before 2pm to 3pm, not in the evening). ② found a sign of floating head and should stop fertilizing and control food intake. The stocking density of ③ should not be too high. ④ insists on patrolling the pond, paying special attention to the color change of the water quality to prevent the pond water from becoming muddy and turbid.