Stress can be reduced by the following measures:
1. Start the aerator more: start the aerator to stir and aerate, increase the dissolved oxygen in the pool water, and relieve the stress reaction of fish.
2. Oral vitamin C: dissolve vitamin C in water first, then spray it evenly on the artificial compound feed, and dry it in the shade for about 30 minutes before feeding.
3. Adding zeolite powder: the dosage is per cubic meter of water 10-20g.
4. Spraying glucose and vitamin C: Sprinkle 2 kg of glucose and 200 g of vitamin C at the depth of water per mu 1 m for 2-3 days.
5, using microbial agents; The whole pond is sprayed with biological agents such as photosynthetic bacteria (5-8kg/mu) or EM compound bacteria to eliminate harmful gases such as ammonia nitrogen, nitrite and hydrogen sulfide in water and improve water quality and sediment.
6. Sprinkle quicklime all over the pool: After the rainstorm, the PH value of the pool water will be greatly reduced. Spraying quicklime (5- 10kg/ mu) everywhere in the pool water can make the PH value of the pool water relatively stable.
7, usually prevention should pay attention to feed nutrition balance, protein content is appropriate, more with the use of natural bait. Pay attention to regulating water quality, and often use photosynthetic bacteria and EM bacteria to improve water quality.