1. When the two drugs are mixed, they should be dissolved separately in water and then mixed. Copper sulfate, ferrous sulfate, potassium permanganate, etc. should be dissolved in water in a wooden barrel or tub. Powdered drugs such as bleaching powder and trichlorfon should be adjusted into a paste with a small amount of water, and then diluted with water to avoid agglomeration by the fish. The following drugs cannot be mixed: bleaching powder with quicklime, copper sulfate and quicklime, trichlorfon and quicklime.
Second, the time of administration of drugs should generally be arranged around 4 pm. It is not advisable to pour the medicine in the morning to avoid causing the fish to have an oxygen-free floating head; nor to use the medicine in direct sunlight at noon to avoid a production accident.
Third, the use of copper sulfate should pay attention to: 1. The calculation of the amount of copper sulfate should be accurate; 2. The temperature of the water used to dissolve copper sulfate should not exceed 60 ° C, otherwise copper sulfate will be invalid; 3. Copper sulfate should not be used frequently, so as not to harm the human body health.
Fourth, splashing liquid medicine, sprayer can be used, or you can use a wooden scoop or a spoon to sprinkle the entire pond evenly.
Fifth, careful diagnosis, the right medicine, so as not to cause waste, increase costs.
6. When the water temperature is high, the effect of spraying the medicine is best, and the splashing should be even. Drugs that are not easily dissolved should be thoroughly dissolved in water and then spilled to avoid leaving particles to cause fish to ingest poisoning.
7. Within 1 hour to 2 hours after the fish is administered, people should not leave the pond. If the fish is found to have serious floating head or dead fish, it should be promptly injected with new water.
Eight, the fish can not be used when the head is floating or just after the floating head, otherwise it will cause a large number of fish deaths.
Nine, the sprinkling of medicine should be gradually sloping from the windward place, and can not be greeted by the wind.
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