What is the reason for grass carp jumping up and down when the temperature is about 20 degrees in spring?

When the alkalinity of 1 increases, the toxicity of ammonia nitrogen will increase.

2 The weather changes, the air pressure is low, and the pond lacks oxygen. This usually happens when the weather changes suddenly, the oxygen in the water is insufficient, and the atmospheric pressure changes suddenly, so the fish have to surface and jump out of the water to breathe. Prevention method: Turn on the aerator in time and spray long-acting oxygen or emergency oxygen to relieve it.

The water quality is thin, the bait is insufficient or the pond leaks, and the fish swim around the pond, forming the phenomenon of horse racing. This situation can be improved by enriching the bait organisms in time, checking the water leakage in the pond and reasonably arranging the fry density.

Infected parasites: ciliates, rotifers, trypanosoma, fish _ Infecting the gills, blood and body surface of fish will make the fish feel uneasy and swim and jump violently.

5 ammonia nitrogen poisoning, obvious floating head, shortness of breath, wandering around, floating and sinking.

6, hydrogen sulfide poisoning, when a large number of organic matter piled up at the bottom of the pond, and the lack of decomposition of beneficial microbial strains, such as Yukang spore powder, at this time, if dissolved oxygen is exhausted, it will produce highly toxic hydrogen sulfide under the action of sulfide bacteria, and when fish suddenly encounter hydrogen sulfide, they will jump out of the water in groups.

If there are more fierce fish in the fish pond, the small fish will jump ashore eagerly.