When the hot day comes, how can aquaculture farmers prevent inverted algae ?

Take precautionary measures to effectively prevent the occurrence of algae.

1. Turn on the oxygen machine in the high temperature season to prevent water stratification, maintain sufficient dissolved oxygen, and prevent algae inversion caused by hypoxia.

2. Frequently use live bacteria king, or use soybean meal and live bacteria mixed and fermented for a week to supplement a small amount of biological enzymes, vitamins and other active nutrients to meet the needs of algae growth.

3. Use the source of beauty + multi-dimensional supplementation of trace elements, and use the source of green algae to improve the vitality of algae.

Fourth, the use of five-star guards to remove turbidity and stickiness, improve the oxygen capacity of the water body, and promote the growth of algae.

What to do in the event of algae fall.

First, find out the cause of the algae. Is it caused by water stickiness and sub-hypoxia? Or is it due to uneven nutrition?

Or is it due to water stratification, bottom failure, etc.? Only by finding out the cause can we deal with the factors that inhibit the growth of algae in a targeted manner, and then cultivate algae. Do not blindly fertilize and use live bacteria indiscriminately.

If the algae is caused by the lack of oxygen in the water body, if the live bacteria are not used properly, it will aggravate the algae caused by the lack of oxygen in the water body or the stickiness of the water; If you blindly top dress, it will cause the water to be more viscous, resulting in the water returning to clear and the fertilizer sinking to the bottom.

Second, after the algae are inverted, the aeration should be increased to prevent the hypoxic stress caused by the algae, especially in the middle and late stages of shrimp farming or high-density shrimp farming, it is best to put strong oxidants at the same time, such as fish and shrimp Guardan oxidation and decomposition of algae poison.

3. If there is a condition, change the water appropriately to improve the water quality, or use dolomite powder + five-star guard to remove stickiness to improve the water environment to facilitate the next step of algae cultivation.

Fourth, use live bacteria king + fertilizer water paste + green algae source to supplement the biological enzymes, vitamins and nitrogen, phosphorus and potassium and other algae inorganic and organic nutrients of the water body, and promote the growth of beneficial algae.

To prevent and control pond algae, it is necessary to strengthen pond patrols, pay attention to changes in water bodies and monitor changes in water quality indicators, and take appropriate management measures. It is necessary to pay attention to the weather conditions at all times to prevent sudden changes in the weather from causing algae. It is also necessary to use chemical reagents such as disinfectants and insecticides with caution, especially algae killing products, which can easily cause a large number of algae to die if used improperly.

In addition, it is necessary to regularly use Leech Diwang, Leech Di'an, Leech Water Purification, Leech Arc Dr., etc. to transfer water and improve the substrate in a planned manner, and the time and method of fertilizer water should also be grasped.

Once the pond has the phenomenon of algae falling, the aerator should be turned on immediately, and the aerator should be used together to prevent hypoxia. According to the situation of the algae, take measures such as adding water, changing the water, or using related products to condition. After treating the poured algae, it is necessary to pay attention to the fertilizer water, and adjust the water quality with microecological preparations such as leek water nutrients.

First: change the water. The water is changed twice a week to prevent the water from aging and eutrophication.

Second: transplant more water peanuts, and put some water hyacinth, duckweed, purify water quality, and prevent water quality from being over-fertilized.

Third: sprinkle Bacillus + EM bacteria + chlorella once a week. Prevent the overgrowth of miscellaneous bacteria and algae and maintain the balance of bacteria and algae in the water body.

Fourth: use sulfur once every 10-15 days, and after 12 hours, use organic acids to detoxify.

Fifth: Deepen the water level to a depth of 80 cm to 1 meter and lower the water temperature.

The growth of algae requires not only light, but also nutrients such as nitrogen, phosphorus, potassium, sodium, magnesium, calcium, trace elements, carbon dioxide for photosynthesis during the day, and oxygen absorption at night. There are also requirements for temperature, and most algae grow and reproduce faster when the temperature is high. When these external conditions change abruptly, such as insufficient light, nutrients cannot keep up, or sudden temperature drops, it may cause a large number of algae to die, which we call algae inverted.

In aquaculture, the most common is that a dominant species of algae grows too much, and the aquaculture water cannot carry it, resulting in nutrients that cannot keep up, or algae death when there is not enough light.

In order to prevent algae infall, it is first necessary to maintain the proper transparency of the aquaculture water, and personal experience should not be less than 15 cm. When the transparency of the aquaculture water is too low, the best way to increase the transparency of the water body is to reduce the organic matter, suspended particles and colloidal substances suspended in the water body. Organic matter can be decomposed by bacillus, while suspended particles and colloidal substances can be quickly precipitated using Pure Water Spirit, Black Carbon Crystal or Water Detoxification Water Protector; When the transparency of the water body is less than 40 cm, the nutrients have been insufficient. The second is to maintain the diversity of algae, which can avoid algae inversion caused by the single algae and the replacement of algae generations, increase the stability of algae, and avoid algae inversion.

You can add live algin, calcium and magnesium and phosphate fertilizer in small quantities and many times; Finally, it is necessary to maintain the balance between algae and microorganisms, such as the intensive culture pond of feeding, and the regular use of spore powder once a week, Lactobacillus casei can maintain the stability of water color.

For the algae that have been poured down, the water quality is turbid, and the fish are hypoxic caused by too few algae, or there is a layer of algae enrichment on the surface, but there are very few algae under the surface water, it is necessary to re-cultivate algae, first of all, we must supplement enough primary nutrients nitrogen, phosphorus, potassium and live algae, and for some cases where it is difficult to cultivate algae, we must also supplement carbon sources, dry Lactobacillus dry, calcium and magnesium treasure. According to the principle of making up for what is lacking, when the lack is made up, the algae can be cultivated, that is, the water can be fertilized. If conditions permit, the surface water rich in algae can also be diverted from nearby fish ponds by changing the water, which can be quickly treated.

If the water quality is black, smelly, and nitrite is high, the use of phosphate fertilizer should also be increased, and the bottom should be changed in combination with the bottom modification sheet.

There is a special situation, that is, there is more organic matter, more rotifers, less algae, and the cultivated algae is not enough for rotifer consumption. At this time, you can use the wheel ring to kill, press a bag with two acres, kill the rotifers, and then supplement the bacillus powder, Lactobacillus casei, and live algae.

If the pH value of the water quality is too low, it can be adjusted with quicklime.

Oxygenation. Turn on the aerator to prevent the fish and shrimp from being hypoxic, and use the aerator at night.

Detoxification. Preventing the effects of algal toxins produced by algae mortality on farmed animals requires timely detoxification with organic acids.

Replenish with fresh water. Change the water several times in small amounts.

It is indeed prone to this situation, which is directly related to the water of aquaculture, which can be treated with some items, and some chemicals can be used.

Why does "algae fall" occur in the middle and late stages of aquaculture?

Hello, it may be due to the following reasons: 1. Sudden changes in temperature, continuous high temperatures, heavy rains and other extreme weather will lead to stratification of the water body, sudden changes in salinity, and low dissolved oxygen in the water body, resulting in the death of a large number of algae; 2. The difficulty of human management, improper grasp of fertilization time, abuse of disinfection and insecticide will lead to the death of algae; 3. The lack of nutrients leads to a decrease in the reproduction rate of algae, and the dust of the mountain and mausoleum of the water body gradually ages, and the new algae do not follow the knowledge, which will cause a large number of algae to die.

Summary. 1. Causes of algae.

There are many reasons for this, such as inadequate management, frequent use of pesticides, abrupt weather changes that cause algae deficiency, nutrient deficiencies due to dense algae growth in ponds, or excessive consumption of algae in ponds.

Second, the harm of inverted algae.

If a large number of algae die in the pond, it will cause a decrease in the ability of photosynthesis to produce nutrients and the oxygen content of the water body, because the death of algae requires decomposition and consumption of oxygen. Under such circumstances, it is extremely easy to cause hypoxia in the water body and cause the death of pond organisms. Moreover, the hypoxic pond mouth will also cause sub-salt, ammonia nitrogen, and other water quality to be too high, and after the water quality deteriorates, it is easy to lead to the proliferation of anaerobic microorganisms, resulting in a high incidence rate.

Why does "algae fall" occur in the middle and late stages of aquaculture?

1. There are many reasons for the inversion of algae, including inadequate management, frequent use of pesticides, abrupt weather changes that cause algae hypoxia, nutrient deficiency due to dense growth of algae in ponds, or excessive consumption of algae in ponds, etc., which will cause algae inversion. Second, the harm of algae inverted pond algae If a large number of algae die, it will cause a decrease in photosynthetic production capacity and water oxygen content, because algae death needs to be carefully called for oxygen consumption. In such a situation, it is extremely easy to cause the lack of oxygen in the water body Qingkai, resulting in the death of Xiaoji pond organisms.

Moreover, the hypoxic pond mouth will also cause sub-salt, ammonia nitrogen, and other water quality to be too high, and after the water quality deteriorates, it is easy to lead to the proliferation of anaerobic microorganisms, resulting in a high incidence rate.

3. How to prevent algae from falling When the weather changes, you can open more aerators to reduce feeding; Insist on patrolling the pond every day, pay attention to the changes in the water color of the pond and the feeding situation and activities of aquatic products; Do not use pesticides and disinfectants frequently or excessively; Fill with new water in time to raise the water level, or turn on the oxygen machine before the surplus shoot to prevent convection of the water body; You can prepare more oxygenation drugs and equipment in case you need them. Fourth, after the treatment of algae, timely replenish nutrition, change water, detoxification, oxygenation and anti-stress; The whole pond turns on the aerator and uses the aerator at the same time; When the water source is sufficient, fill with clean new water in time; Use detoxifying stress products and re-culture the algae.

In order to effectively ensure the efficiency of aquaculture, the occurrence of algae inversion in the water body must be well managed, which can effectively reduce the economic losses in the breeding process and ensure the interests of farmers.

Summary. Hello 1In the middle and late stages of aquaculture, a large number of residues, feces, rotten grass, and drug residues gather at the bottom of the pond, resulting in the deterioration of the pond bottom quality. 2.Large-scale death of planktonic microalgae occurs due to abnormal weather or nutrient deficiencies.

Why does "algae fall" occur in the middle and late stages of aquaculture?

Hello 1In the middle and late stages of aquaculture, a large number of bait, manure, rotten grass and drug residues accumulate at the bottom of the pond, resulting in the deterioration of the bottom quality of Weiheqiao pond. 2.Due to abnormal weather or nutrient deficiencies, large-scale death of planktonic microalgae may occur.

3.In the timely treatment after the algae are poured down, firstly, the false frank pulse is to stop the material or control the material, and secondly, the oxygen-enhancing environmental regulator is put to improve the substrate. After adding fresh water the next day, use the nutrients of spores and planktonic microalgae for marketing.

Remedy: Turn on the aeration equipment for emergency oxygenation; The application of ultra-concentrated organic acids and narvesin for detoxification and anti-stress; Potassium persulfate is used to improve the bottom environment. Prevention method:

Always pay attention to the weather forecast, prevent the phenomenon of algae collapse caused by continuous bad weather, increase the number of pond inspections, and pay attention to pond changes at any time; Inject fresh water into the pond regularly and use microbial agents such as polyenergetics or live water prebiotics.

1. How to remedy the algae after the pond is poured into the pond

1. What is pond algae?

A large number of algae in the aquaculture water body die, resulting in the water color suddenly becoming clear, turbid, and even turning red, a phenomenon is called inverted algae, the pond where the inverted algae occurs often floats a layer of dead algae on the water surface, after the inverted algae occurs, the water body often increases viscosity, foam more, large and not easy to disperse for a long time, some even foam is relatively dirty yellow, easy to lead to pond hypoxia, water quality deterioration.

2. Remedy.

1) Turn on the aeration equipment and carry out emergency aeration; Then do a lot of water changes, draining the water outward during the day and adding water inward in the evening.

2) Dry sprinkle aeration products such as "Jiujiu Oxygen" and other percarbonate aebrants.

3) Application of ultra-concentrated organic acids and narvein for detoxification and anti-stress.

4) Use potassium bisulfate to improve the bottom environment.

2. How to prevent algae in ponds

1. Pay attention to the weather forecast to prevent algae inversion caused by sudden weather changes such as continuous high temperature and heavy rain.

2. However, it is appropriate to increase the number of pond patrols, pay attention to the changes of the water body at any time and regularly monitor the water quality indicators of the pond.

3. Open more aerators to avoid stratification of aquaculture water, improve the total alkalinity of the water body, reduce pH changes, and increase the stability of the water body.

4. Regularly add new water, and use microbial preparations such as polyenergeticin or live water prebiotics to adjust the algae phase; It can also be combined with the use of strong oxygen bottom purification, bottom rejuvenation and other products to improve the substrate to avoid algae inversion.

5. Supplement the nutrients required for cultivating beneficial algae such as chlorella and diatoms and algae species, including amino acids and minerals, promote the metabolism of algae and improve their resistance to stress.

6. Cultivate EM bacteria, bacillus, etc. to further decompose the residual organic matter in the pond.

Due to abnormal weather conditions (cooling, prolonged rainfall, changes in wind direction) or lack of nutrients, there will be a large-scale death of planktonic microalgae, commonly known as "inverted algae" (i.e., sudden death of planktonic microalgae). From the color of the water, it can be seen that the water in the pond suddenly becomes clear or turns color, if not treated in time, the shrimp will stop feeding, swim wildly, and in severe cases, it will lead to disease outbreaks.

The preventive measures are:

1) Pay attention to prevention in advance.

Before the weather change, fertilized water-type photosynthetic bacteria or fertilizer-water-type lactic acid bacteria were applied to maintain the normal growth of planktonic microalgae. (2) Timely treatment after pouring algae.

First of all, it is necessary to stop feeding or control the amount of feed to avoid polluting the water quality with uneaten feed; secondly, zeolite powder and oxygenator, or oxygen-enhancing environmental regulator were applied to improve the substrate; After some fresh water is added the next day, the bacillus preparation and microalgae nutrients are applied. At the same time, products that relieve shrimp stress can also be applied to prevent shrimp from stressing and enhance oxygenation.