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Cautions for use of copper sulfate
Copper sulfate also known as blue vitriol, gall stone is dark blue, transparent crystal or powder, soluble in water, the solution is acidic. It is a drug commonly used in disease prevention, treatment of native fish parasites, such as parasitic flagellates, ciliates in vitro, insects, fish and other Chinese Straw fleas. Because copper sulfate is a heavy metal salt, the following points should be paid attention to during its application:
The ability of copper sulfate to kill pathogens is different with the change of water environment. Generally, the toxicity increases with the increase of temperature, and decreases with the increase of pH value, the increase of organic matter and the presence of salt. Therefore, the dosage should be flexibly controlled according to the specific circumstances of the water environment.
Two. The safe concentration range of copper sulfate is small. In general use, the concentration of 0.5ppm ~ 0.7ppm copper sulfate or full pool splash with the concentration of copper sulfate bath 8ppm 20 minutes to 30 minutes. Therefore, it is necessary to accurately measure the volume of aquaculture water and calculate the dosage correctly.
Three, excessive copper sulfate can cause fish kidney tissue necrosis, hematopoietic tissue destruction, liver fat increase, but also may remain in the gills, muscles and liver of fish, hinder intestinal absorption, thereby affecting the fish feeding and growth, it can not be used frequently.
Four. Copper sulfate is often mixed with ferrous sulfate at a ratio of 5 to 2. Ferrous sulfate is mainly used to remove the fixed substance and eliminate the obstacles for copper sulfate to kill parasites. Especially the parasitic disease of Chinese fish flea, because of the gills of fish gills swollen white, mucus increased greatly. If the use of copper sulfate alone is not obvious, and must be mixed with ferrous sulfate to use, pay attention to the use of ferrous sulfate concentration and copper sulfate the same.
Five, dissolved copper sulfate water temperature should not exceed 60 degrees, otherwise the liquid is easy to fail.
Six. Copper sulfate is ineffective against small intestinal worm disease. Because the small worm is formed on the surface of the fish bag, not easy to be killed by copper sulfate, the use of fish will cause a large number of deaths.


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