The correct method and detailed operational steps for pond clearing

Before stocking fish fry, a comprehensive and thorough disinfection of the fish pond must be carried out. Weeds, unwanted fish, various pathogens and other harmful organisms in the pond must all be cleared away. This creates a high-quality growing environment for the fish, ensures normal growth, and avoids unnecessary losses. So how exactly should a fish pond be cleared? Below, the editor gives a brief introduction to fish pond clearing methods. Let's take a look!

1. Bleaching powder disinfection

Bleaching powder is the most commonly used disinfection method for clearing fish ponds. First, we need to drain all the water from the pond, then sprinkle about 10 jin of bleaching powder per mu. If disinfecting with water still in the pond, then about 13-14 kg of bleaching powder should be used for the deep water body of each mu of pond; only with a sufficient amount can the disinfection goal be effectively achieved. Note that when sprinkling bleaching powder, it should first be dissolved in water before being sprinkled.

2. Quicklime disinfection

When using quicklime for disinfection, try not to disinfect with water still in the pond. Therefore, before disinfection, the drainage and disinfection work should be done well, draining the pond water to about 5 cm before disinfecting. After draining, sprinkle about 65 kg of quicklime over the whole pond. If the pond is not drained for clearing, then the amount of quicklime should be increased, using about 140 kg for the deep water body. Likewise, when using quicklime for disinfection, the quicklime should first be dissolved in water, and then sprinkled.

3. Combined disinfection

Combined disinfection means applying bleaching powder together with quicklime into the pond. When draining the pond for clearing, use about 5 jin of bleaching powder and about 70 jin of quicklime per mu. If the pond is not drained for clearing, then the amounts should likewise be appropriately increased: about 12 jin of bleaching powder and about 140 jin of quicklime. The main method of use is similar to that of bleaching powder and quicklime; the key is to control the amounts well.

4. Croton disinfection

Croton pond clearing is likewise divided into two methods: disinfection with drainage and disinfection without drainage. When clearing without draining the pond, be careful to control the amount, keeping it at about 12 jin per mu. Before using croton, crush it and place it in a container, then seal it with salt water for about 3 days. Before sprinkling, dilute it with water and sprinkle it over the whole pond. However, be sure to pay attention to the amount to prevent excessive use, which would hinder the growth of the fish.

The above is a brief introduction to fish pond clearing methods. There are many methods for clearing fish ponds, and the main thing is for everyone to control them reasonably according to their own farming techniques and habits. Ensure the fish have a good growing environment and promote growth. That is all for today's introduction. This article is for reference only, and I hope it can help everyone!