The role of copper sulfate in aquaculture

Copper sulfate is a relatively common chemical that can play a relatively large role in many fields. For example, it is a relatively common drug in aquaculture. This drug has relatively little impact on the environment. For example, it is relatively effective in preventing fish diseases. In addition, copper sulfate is often used for disinfection of tools and food, which can inhibit the growth of harmful algae. Let's take a look at this aspect.

The role of copper sulfate in aquaculture

1. Prevent and control fish diseases

Copper sulfate can be used to prevent and treat fish diseases caused by protozoa (such as egg whipworm disease, cryptowhipworm disease, fish bean worm disease, hairworm disease, oblique tube disease, wheelworm disease, etc.) and fish diseases caused by crustaceans (such as Chinese fish flea disease, etc.). The concentration of the drug for spraying throughout the pond is generally 0.7 ppm in spring and autumn (the ratio of copper sulfate to ferrous sulfate is 5:2); in summer it should be reduced to 0.5~0.6 ppm. Try to apply the medicine at noon on a sunny day and spray it evenly throughout the pond. After applying the medicine, be prepared to rescue floating fish.

2. Fish Medicinal Bath

The commonly used bath concentration is 8 ppm (the ratio of copper sulfate to ferrous sulfate is 5:2) aqueous solution or 8 ppm copper sulfate plus 10 ppm bleaching powder aqueous solution for 10-30 minutes. Both formulas can kill bacteria and protozoa on the body surface and gills; they are also effective against myxozoa that have not formed cysts.

3. Disinfection of tools and dining areas

Soaking fishing gear in a 20ppm copper sulfate aqueous solution for half an hour can kill protozoa. Feeding area disinfection can be carried out regularly during the season when fish diseases are prevalent. Use 100 grams of copper sulfate and 40 grams of ferrous sulfate each time. After dissolving in water, sprinkle it around the feeding area, with the area controlled at 80-100 square meters. Sprinkle the medicine first and then feed the fish, once a day for 2-3 days. Used to prevent and treat protozoan diseases.

4. Control the growth of harmful algae

Copper sulfate is also commonly used to prevent and treat fish poisoning caused by Microcystis and Dinoflagellate. The concentration of the drug sprayed throughout the pond is 0.7ppm (the ratio of copper sulfate to ferrous sulfate is 5:2). After using the drug, the aerator should be started in time, or clean water should be added as appropriate in the early morning of the next day. Prevent fish poisoning caused by toxic substances produced after algae die.