Use salt to disinfect fish, can not directly pour salt into the fish tank, because the concentration is too high, long-term fish culture is not feasible, generally use to prepare a special container, which is poured into the trapped water, and then add salt, the concentration is about 2%, put the fish into it, soak for 5-20 minutes. Then you can fish it out and put it back.
1. Bleaching powder: Bleaching powder is a common disinfectant. Its main ingredient is calcium hypochlorite, which can be disinfected by means of its oxidation. Generally, 15 milliliters of water per liter should be used, and then the fish should be immersed in it for 15 minutes, which can prevent some bacterial diseases.
2, copper sulfate: copper sulfate can also play a disinfectant effect, common Bordeaux mixture is the main ingredient of it. Its concentration is generally lower than that of bleaching powder, only 8 mg of medicine is needed for a liter of water, and fish need to be soaked for about 20 minutes to prevent fish wave bean worm disease and trichinosis.
3. Trichlorfon: As the name implies, trichlorfon is a drug that can kill insects. Generally, 10 ml of drug needs to be dissolved in each liter of water. The soaking time is 15 minutes. It can prevent dactylogyrus disease, Gyrodactyliasis, etc.
4, furazolidone: furazolidone generally put 5 mg per liter of water can be, its negative effect is relatively large, so to strictly control the dosage. Usually, fish should be soaked for 2 hours to prevent bacterial diseases.
