How to clean weeds and algae under the pond?

1. What medicine is used for fish pond disinfection?

Usually, the renovated pond should be disinfected with drugs, which can prevent the occurrence of epidemics and kill bacteria and germs in the pond. However, not all chemicals can be used for pond disinfection. Commonly used chemicals include:

1. Bleach

As a disinfectant, bleaching powder is widely used in food industry, with low price, strong sterilization and good disinfection effect. For example, it is used for disinfection of drinking water, fruits and vegetables, disinfection of facilities and articles such as swimming pools, bathrooms and furniture, and bleaching of foods such as oil, starch and peel. Attention should be paid to the stimulation and corrosion of bleaching powder aqueous solution on gastrointestinal mucosa to avoid eating by mistake.

2. Qingtangling

Qingtangling is an efficient pond cleaning product, which can effectively kill wild fish, shrimp, crab, parasites and copepods in seawater and freshwater aquaculture ponds, as well as parasitic eggs such as sporozoa and dactylogyrus in pond sediment and water. However, it should be noted that the water quality should be tested 10- 15 days after cleaning the pond, and the fry can only be released after confirming that there is no toxicity in the pond.

3. quicklime

Quicklime is the best disinfectant in ponds, which can disinfect and effectively kill pathogens (parasites, bacteria, etc.). ), improve the permeability of sediment, adjust the pH value, enhance the buffering capacity of water, promote the growth of plankton, and thus improve the production capacity of fish ponds.

Second, how to disinfect the fish pond?

Fish pond disinfection should choose drugs according to the actual situation, and the time and quantity of disinfection should also be determined according to the actual situation.

1. Generally, intensive fish ponds, ponds with low pH value, often sprinkle with quicklime is better. If the pond is disinfected with quicklime, the whole pond should be sprinkled with quicklime after 3 pm on sunny days, and it is not suitable for the whole pond to be sprinkled with quicklime in summer with high water temperature, warmth and thunderstorm weather. Moreover, the quicklime spilled from the pond should be used now, and it should be avoided to be used with acid bleaching powder or chlorine-containing and iodine-containing disinfectants, trichlorfon, fertilizer, etc. when eating quicklime for disinfection, and the interval is preferably more than 5 days.

2. If the pond is disinfected with Qingtangling, it is best to dilute the pond water by 2000 times and then sprinkle it evenly throughout the pond. If the water quality is too fat or the water temperature is too low when spraying, the dosage can be increased appropriately.

3. If the fish pond is disinfected with bleaching powder, the general dosage is 20g/ m3. When bleaching powder is dissolved in water, it will immediately spread all over the pond. In addition, in order to ensure safety, you must stand in the upwind direction of the fish pond and wear a mask when splashing water.