How much copper sulfate is put in an acre of fish pond usually depends on the water temperature. When used in hot summer, the dosage of copper sulfate should not exceed 300g/mu. The higher the temperature, the higher the toxicity of the drug. Copper sulfate can prevent and cure fish diseases, sterilize and control the growth of harmful algae, but the dosage should be strictly controlled to avoid fish poisoning caused by excessive dosage.

1. How much copper sulfate is put in an acre of fish pond?

How much copper sulfate should be used in 1 and 1 mu fish ponds generally depends on the water temperature. When used in hot summer, the dosage of 1 mu should not exceed 300g, because the toxicity of copper ion is positively related to the water temperature. The higher the temperature, the higher the toxicity, which easily affects aquatic products.

2. After being absorbed by organisms in water, copper sulfate will combine with various enzymes and active substances in organisms, thus generating insoluble substances, inactivating enzymes and active substances, destroying metabolism and various biochemical reactions in organisms, thus leading to biological death.

3. Copper sulfate is one of the commonly used drugs in aquaculture, which can prevent and control fish diseases, sterilize and control the growth of harmful algae, but improper use can also cause harm to fish. For example, excessive use of copper sulfate can lead to fish poisoning, so the dosage should be strictly controlled.

Second, the use of copper sulfate

1, usage

(1) medicated bath: 8 mg/l copper sulfate+bleaching powder 10mg/L medicated bath 15-30 minutes can prevent and treat fish diseases caused by cryptosporidium branchiae, rotifer, trypanosoma and other protozoa.

(2) Disinfection of fishing gear: Generally, the fishing gear can be soaked in 20mg/L copper sulfate solution for 30 minutes to kill protozoa.

2. Use precautions

(1) Copper sulfate contains copper ions, which will accumulate in fish and cause side effects, so it cannot be used continuously.

(2) When the water is alkaline, use copper sulfate with caution, so as not to poison the fish after the formation of copper oxide. When the water quality is rich, the dosage of copper sulfate can be appropriately increased, but the maximum dosage is limited to1mg/L.

(3) Some parasites can't be controlled by copper sulfate. For example, treating cucurbits with copper sulfate will not only kill them, but also promote their mass reproduction. Therefore, before using copper sulfate, it is necessary to observe whether the parasites in fish ponds can be treated with this medicine.