Traditional Methods for Preventing Water Leaks in New Fish Ponds and Disinfection Precautions

AbstractThe most traditional methods for preventing water leaks in new fish ponds: the bottom of the pond can be fully compacted by mechanical rolling, or yellow clay can be evenly smeared on the bottom of the pond, and after it dries naturally, water can be added. What to use for disinfection in a new fish pond: new fish ponds can be disinfected with bleaching powder, Qingtangling, and quicklime. What to pay attention to in a new fish pond: pay attention to clearing residual fish eggs, checking for leaks, disinfection, and managing water quality.

1. The most traditional methods for preventing water leaks in new fish ponds

Generally, leaks can be prevented by laying plastic film on the bottom. This is a relatively convenient, simple, and effective method, but it is not a long-term solution, and the plastic film may become damaged or leak. Alternatively, the bottom of the pond can be fully compacted by mechanical rolling, which can effectively solve the problem of fish pond leakage. Or yellow clay can be evenly smeared on the bottom of the pond, and after it dries naturally, water can be added, which can also effectively prevent leaks at the bottom of the pond.

2. What to use for disinfection in a new fish pond

1. Bleaching powder

Bleaching powder is generally widely used in the food industry as a bactericidal disinfectant because it is low in price, strong in bactericidal power, and good in disinfection effect. It is often used for sterilization and disinfection of drinking water and fruits and vegetables, and is also often used for disinfection of facilities and items such as swimming pools, bathrooms, and furniture, as well as for bleaching foods such as oils, starch, and fruit peels. However, when using it, note that an aqueous solution of bleaching powder has an irritating and corrosive effect on the gastrointestinal mucosa, so accidental ingestion must be prevented.

2. Qingtangling

Qingtangling is a highly efficient pond-clearing product. It can not only effectively kill wild miscellaneous fish, shrimp, crabs, parasites in the water, and copepods in seawater and freshwater aquaculture ponds, but also has a good killing effect on parasite eggs such as sporozoans and dactylogyrus in pond bottom sediment and water. Generally, 10-15 days after pond clearing, a water test should be carried out. Only after ensuring that the pond is no longer toxic can fry be put in.

3. Quicklime

Quicklime has a relatively good effect in pond disinfection. It can not only disinfect, but also effectively kill pathogens, that is, parasites, bacteria, and so on. At the same time, it adjusts the pH value, improves the permeability of the bottom sediment, enhances the buffering capacity of the water body, and promotes the growth of plankton, thereby improving the production capacity of the fish pond.

3. What to pay attention to in a new fish pond

1. Clear residual fish eggs

(1) The water source of a newly dug fish pond must be abundant. Most fish farmers may not know that some fish eggs are very tenacious in vitality. If you directly start raising fish in a newly dug fish pond, other fry may be bred later.

(2) If these fish have not undergone safe treatment, they are very likely to carry infectious pathogens, affecting the benefits of later aquaculture. Therefore, a newly dug fish pond needs to be dried first, then filled with water, and cycled about 2 times, which is helpful for clearing residual fish eggs.

2. Check whether there is leakage

New fish ponds are relatively prone to leakage. Since they are now dug by machinery, accidental cracks may not be visible. To check whether there is leakage, the pond needs to be filled with water, and then the degree of water loss should be observed. If there is no obvious change in the water surface within 1-3 days, it proves that there is no leakage.

3. Disinfection

Pathogens may be hidden near a new pond, so the surrounding area also needs to be properly disinfected. If the water is deep, add more disinfectant; if the water is shallow, add less, but it must be sprinkled thoroughly.

4. Manage water quality

Fish farming has relatively high requirements for water quality. Fish farmers in most places have suffered great losses due to water pollution. Therefore, a newly dug pond must be well managed in terms of water quality. Polluted water must not be allowed to flow into the new pond. At the same time, there needs to be a purification space between the water source and the pond, so that there is an extra layer of protection.