1. When the two drugs are mixed, they should be melted separately and then mixed. Industrial Grade Copper Sulfate Pentahydrate ( https://www.wsdty.com/product/copper-sulfate/industrial-grade-copper-sulfate-pentahydrate/ ), Ferrous Sulfate, Potassium Permanganate, etc. should be dissolved in clean water at about 50℃ in a wooden barrel or tub; powder drugs such as bleaching powder and trichlorfon should be mixed with a small amount of water first. Paste, dilute with water to avoid lumps being eaten by fish. When using bleaching powder, first measure the chlorine content of the bleaching powder, and do not use damp bleaching powder. When using trichlorfon, spray with a sprayer and clean the sprayer before and after use. Drugs that are deteriorating and damp cannot be used, and all drugs should be prepared for immediate use. The following drugs should not be mixed: bleaching powder and quicklime, Industrial Grade Copper Sulfate Pentahydrate and quicklime, trichlorfon and quicklime, etc.

2. The time of drug administration should generally be arranged at about 4 pm. Because it is evening after the medicine is poured, the temperature and water temperature will decrease, which can reduce fish anxiety and physical consumption. It is not advisable to splash the medicine in the morning to avoid hypoxic floating heads of fish; also not to be applied in direct sunlight at noon to avoid reducing the efficacy of the medicine.

3. Pay attention when using Industrial Grade Copper Sulfate Pentahydrate: 1. The amount of Industrial Grade Copper Sulfate Pentahydrate should be calculated accurately. 2. The temperature of the water used to dissolve Industrial Grade Copper Sulfate Pentahydrate should not exceed 60°C, otherwise the Industrial Grade Copper Sulfate Pentahydrate will fail. 3.Industrial Grade Copper Sulfate Pentahydrate should not be used frequently, so as not to endanger human health.

4. Sprinkle the liquid medicine, use a sprayer, or use a wooden scoop or spoon to evenly sprinkle the whole pond, and do not pour it at a fixed point.

5. Diagnose carefully and prescribe the right medicine to avoid waste and increase costs.

6. The effect of spraying medicine is best when the water temperature is high, and the spraying should be even. Drugs that are not easily soluble should be fully dissolved in hot water and then spilled, leaving particles that can cause fish poisoning by accident.

7. People should not leave the pond within 1 hour to 2 hours after the fish is administered. Once the fish is found to have serious floating heads or dead fish, new water should be injected quickly.

8. Do not apply medicine when the fish is floating or just after the floating head, otherwise a large number of fish will die.

9. Sprinkle all medicines from the upper wind to the lower wind gradually, so that the medicine is more uniform.