Method of clearing fish ponds

Before releasing fish fry, fish culture must carry out a comprehensive and thorough disinfection of fish ponds. Clean up the weeds, miscellaneous fish and all kinds of germs and other pests in the fish pond. It is necessary to create a high-quality growth environment for fish to ensure normal growth and avoid some unnecessary losses. So how to get to the fish pond exactly? The following editor will give you a brief introduction to the method of clearing fish ponds. Let's have a look!

1. Bleach disinfection

Bleach is the most commonly used disinfection method for clearing fish ponds. First of all, we have to discharge all the water from the fish ponds, and then sprinkle about 10 jin of bleach per mu. If it is to carry out disinfection with water, then the deep water of each mu of pond should use about 13-14kg bleach to ensure a sufficient amount of bleach to effectively achieve the purpose of disinfection. It should be noted that when sprinkling bleach, pay attention to dissolve the bleach with water and then sprinkle it.

2. Disinfection with quicklime

In the use of quicklime disinfection, we should pay attention to try not to bring water disinfection. Therefore, it is necessary to do a good job of drainage and disinfection before disinfection, and disinfect the water in the pond to about 5 cm. After drainage, the whole pool is sprinkled with quicklime about 65kg, if there is no drainage to clear the pond. Then it is necessary to increase the amount of quicklime and use 140kg in deep water. Similarly, when using quicklime for disinfection, quicklime should be melted with water before sprinkling.

3. Combined disinfection

Combined disinfection is the combination of bleach and quicklime into the pond. When clearing ponds by drainage, about 5 jin of bleach and 70 jin of quicklime should be used per mu. If no drainage is carried out to clear the pond, then the dosage should also be increased appropriately. About 12 jin of bleach and 140 jin of quicklime. The main usage is similar to bleach and quicklime, and the dosage should be controlled.

4. Croton disinfection

Croton clearing pond is also divided into two disinfection methods: drainage disinfection and undrained disinfection. When cleaning ponds without drainage, we should pay attention to control the dosage and keep it at about 12 jin per mu. Before using Croton, crush Croton into a container and use salt water bees for about 3 days. Then dilute it with water before sprinkling, and sprinkle the whole pool. However, we must pay attention to the dosage to prevent excessive dosage, resulting in the growth of fish is hindered.

The above is a brief introduction to the method of clearing fish ponds. There are many ways to clear fish ponds, mainly according to their own culture techniques and habits and other reasonable control. Ensure that the fish have a good growth environment and promote growth. That's all for today's introduction. This article is for reference only. I hope it can help you all.