fish ponds without disinfection. Disinfection mainly includes two parts, one is to disinfect the fish pond, because there may be harmful bacteria in the fish pond, which is very harmful to the growth of fish, and even lead to disease, resulting in a large number of deaths, causing certain economic losses, so it is necessary to disinfect the fish pond in advance. The other is to disinfect the fish fry, which may also bring harmful substances into the fish pond.
fish ponds 1. Bleaching powder disinfection: Bleaching powder is a commonly used disinfectant. It contains chlorine, which reacts with water to produce hypochlorous acid. At the same time, it releases a large amount of oxygen, thus achieving the effect of disinfection and sterilization. Generally, about 20-30 kg is used per mu. After it is dissolved in water, the whole pond can be sprinkled.
2. Quicklime disinfection: Quicklime disinfection is also very common. This substance will produce strong alkali when it meets water, and at the same time, it can emit heat, thus eliminating bacteria and fungi in water. It has two uses, one is dry disinfection, and the other is wet disinfection. Dry disinfection is not without water, but the water depth of the fish pond is about 20-30 centimeters, so that 50-80 kilograms can be used per mu. The water depth of wet disinfection is about 1 meter, and 100-150 kg is used per mu.
3. Chlorine dioxide disinfection: Chlorine dioxide is the mainstream disinfectant at present, which is very efficient, and the dosage is very low, and the harm to fish is relatively small. Before use, it is mixed with citric acid according to the ratio of 1:1, then diluted with water, and then poured into the pool, with 1.2-1.8 kg per mu per meter.
