CATDOLL : CATDOLL: Why is the water in the shrimp pond muddy in the morning and clear in the afternoon?

1. Why is the water in the shrimp pond muddy in the morning and clear in the afternoon?

The water in the shrimp pond is muddy in the morning and clear in the afternoon. This may have a lot to do with your feeding habits and the hot weather, right?

The water in the shrimp pond is muddy in the morning, which is related to the morning feeding time and water quality. The old farmer of Qixing also feeds crayfish in an acre of pond. According to my habit of feeding, it is generally set at 6 o'clock in the morning. Sometimes when it is not past 6 o'clock in the morning to feed the crayfish, the crayfish in the pond simply turn the water in the pond upside down, making the water in the pond turbid, especially when you sprinkle the feed in, it is unevenly distributed. If you scatter it in a corner, I personally estimate that they will pile up together and half of them will be crushed to death. The way the crayfish eat the feed is really scary, right?

A few days ago, I found that the crayfish raised in the pond floated in the pond 24 hours a day. The water in the pond was not only turbid, but also a thin layer of yellow paddy rust appeared on the water surface. I personally guessed that there was a lack of oxygen in the water, so I poured some strong chlorine into the pond to sterilize and disinfect it. After purifying the water quality, the crayfish stopped floating in the pond these days, and the water quality in the pond became much clearer and more transparent. It can be seen that the turbidity of the shrimp pond water in the morning is largely related to the feeding feed and water quality.

The water in the shrimp pond is relatively clear in the afternoon, which has a lot to do with the high temperature in the hot summer. The water in the shrimp pond is relatively clear in the afternoon, which shows that the water quality of your shrimp pond is very good and there is no problem with the water quality. It is only turbid for a period of time in the morning, which is related to feeding.

In the hot summer, the weather is hot, and the surface of the pond is exposed to sunlight, which causes the water temperature in the pond to be higher. Especially at two or three o'clock in the afternoon, the water temperature in the pond is even hotter. It is better to microcirculate the pond water to cool it down.

So when the weather is hot in the afternoon, crayfish usually crawl into their caves to escape the heat and cool down. The pond water at this time must be much clearer than in the morning, right?

Therefore, the old farmer of Qixing personally believes that if the water in the shrimp pond is turbid in the morning, if the water quality in your pond is good, it is generally because you put feed in the morning and the crayfish come out to eat the feed, which makes the pond water turbid. The water in the shrimp pond is clearer in the afternoon. The main reason is that the temperature is high in the hot summer, which causes the pond water to boil and the temperature is also relatively high. In order to avoid the heat and cool down, the crayfish are very smart and crawl into caves or live in the mud at the bottom of the water to avoid the heat. Therefore, the water in the shrimp pond is calm and clear, right?

This may be due to the shrimp's habits, which is also normal. Generally, in the afternoon, the shrimp's activity is reduced, so the water is clearer.

The water in the shrimp pond is muddy in the morning and clear in the afternoon. It may have a lot to do with your feeding habits and the hot weather, right? The muddy water in the shrimp pond in the morning is related to the morning feeding time and water quality. The Qixing farmer also feeds shrimps in an acre of pond. According to my feeding habits, it is usually set at 6 o'clock in the morning. Sometimes when it is not past 6 o'clock in the morning to feed the shrimps, the shrimps in the pond simply turn the water upside down in the pond, making the water in the pond muddy, especially when you sprinkle the feed in, it is unevenly distributed. If you scatter it in a corner, I personally estimate that they will pile up together and half of them will be crushed to death. The way the shrimps eat the feed is really scary, right

2. The water in the shrimp pond has become turbid, and the shrimp shells are soft and inactive. What is the reason?

When this happens, the first thing to consider is the actual ammonia nitrogen concentration. Ammonia nitrogen concentration that is too high affects the calcium precipitation of shrimp shells.

The water in the shrimp pond is on fire, and the shrimp shells are soft and inactive. This is because the environment is polluted. The lack of oxygen in the environment causes the shrimp to be inactive. Change the shrimp pond environment in time.

3. The water in the shrimp pond is very turbid and has a slight rotten smell. How to use EM bacteria to improve it

How to use

Generally speaking, three liters of EM bacteria stock solution is diluted with water according to the required proportion and then sprayed on the water surface and used to prepare bait for feeding.

1. Methods of using EM bacteria stock solution for four major carps

① Pond treatment: One week before filling the pond with water, use 100-300 times diluted EM bacteria stock solution and insect repellent made from EM bacteria stock solution instead of lime, bleaching powder, etc. to spray evenly to disinfect and purify the pond. 2.5 kg EM probiotics solution/mu.

② Water purification: 3-10 days before stocking, sprinkle the water surface with diluted EM bacteria stock solution. Depending on the water quality, once every 15 days at first, and once a month thereafter. For areas with poor water quality, shorten the spraying time appropriately. For uniform spraying, dilute the EM bacteria stock solution before use (the best spraying effect is when it rains). 1 kg of bacteria solution/mu below 1.5 meters.

③ Treatment of fish feed: Since fish feed is in granular form, you can spray the bait with 50-200 times diluted EM bacteria stock solution. Spray it until it is wet, and feed it immediately to avoid it from scattering.

④ Treatment of organic fertilizer and feces: Organic fertilizer (liquid grass fertilizer) and feces to be put into water bodies should be treated with EM bacteria stock solution first, 5 kg of bacteria solution/ton of feces. It can be put into the water surface after 7 days of fermentation.

⑤ Fish disease prevention: If fish float and flood the pond, you can evenly sprinkle the diluted EM bacteria stock solution on the water surface. The condition will improve in 3-5 hours and the fish will return to normal. After that, you can sprinkle it 1-2 times every 1-2 days. For some fungal fish diseases, bacterial enteritis, gill rot, printing disease, etc., you can remove the sick fish and directly apply 10-50 times of EM bacteria stock solution to the lesions. You can also soak the sick fish in 100-150 times diluted EM bacteria stock solution (until the fish slightly floats), and they will recover after a few days.

2. Method of using EM bacteria stock solution in cage fish farming in large lakes and reservoirs

① Treatment before stocking: The aquaculture water surface should be cleaned before stocking fish. When cleaning the pond, the insect repellent made from EM bacteria concentrate should be diluted with 50-100 times water and directly sprayed on the spawning grounds of ferocious fish or wild fish to destroy their breeding and growth environment and control their population size.

② Feed with EM bacteria concentrate fermented feed, or refer to the method of processing feed for the four major carps.

③ Soak a honeycomb-shaped object such as a sponge in a mixture of brown sugar and EM bacteria solution (about 10 times) for 24 hours, and then hang it in the middle of the net cage. The EM bacteria solution will continue to spread through the movement of the fish. Replace the EM bacteria solution hanging object once every 7 days or so, which can completely change the water environment of the net cage.

④ Use EM bacteria stock solution 1: EM bacteria stock solution fermentation material 2: yellow mud 4 to make a very sticky ball, weighing 1-1.5 catties each. After drying, hang bags or baskets near the bait, so that the beneficial bacteria of the EM bacteria stock solution have a fixed residence and improve the purification effect, thereby improving and stabilizing the water quality. This ball should be replaced once a month. Put 10-15 per mu.

3. Methods of using EM bacteria stock solution for special aquatic products (prawns, turtles, eels, mandarin fish, etc.)

① Environmental treatment: One week before releasing water into the pond, use 10 times diluted EM bacteria stock solution and insect repellent made from EM bacteria stock solution instead of lime and bleaching powder to evenly spray and purify the environment. 2.5 kg of bacteria solution/mu.

3-6 days before stocking, sprinkle the water surface with 100 times diluted EM bacteria stock solution (the amount of EM bacteria stock solution depends on the water quality, generally 1 kg of bacteria solution/mu below 1.5 meters). The spraying time should be appropriately shortened in areas with poor water quality. Green water is preferred.

② Methods for regulating water quality (eel pond): For ponds that change water twice a day, it is not advisable to directly and evenly pour water into the water. Instead, it should be poured near the aerator or the water inlet to allow the EM bacteria stock solution to flow and spread continuously, so as to decompose harmful substances and waste materials in the shortest time and stabilize the water quality as soon as possible. For eels raised in soil ponds and seawater, it is advisable to sprinkle 1-2 kg of EM bacteria stock solution diluted solution after each water change.

③ Processing of fish feed: Add EM bacteria stock solution to water to make a 100-fold dilution, mix it with powdered feed and feed it in a lumpy form. The moisture content is about 40-55% (the amount of moisture depends on the dryness of the feed).

For turtle ponds that feed fresh animal feed, you can first chop the feed into small pieces, then mix it evenly with artificial compound feed and 100-fold diluted EM bacteria concentrate before feeding.

④ Treatment of the feeding table: Check the feeding table before each feeding, and use 200-500 times diluted EM bacteria stock solution to purify the feeding table and clean up the residual feed on the feeding table.

⑤ Feed processing: Use 200-500 times diluted EM bacteria stock solution to evenly spray and clean the mixer and other tools, the ground and the surrounding walls to ensure the hygiene of the bait.

4. Freshness preservation

In the fresh-keeping tank of aquatic products, spraying a 1000-fold diluted EM bacteria stock solution once every 1-2 days can effectively extend the fresh period of aquatic products and keep the skin color (phosphorus) smooth and pleasing.

IV. Precautions for using EM bacterial solution in aquaculture

① To achieve significant results in aquaculture, EM bacteria stock solution should be used continuously. That is, while using EM bacteria stock solution to make various feeds, the EM bacteria stock solution dilution should be sprayed on the dry pond and water surface as required.

② It cannot be mixed with various antibiotics, fungicides and other drugs at the same time (if it is necessary to use them, there should be an interval of 4-6 days), especially for special aquaculture. If mixed, not only will the effective function of the EM bacteria concentrate fail to be exerted, but it will also cause the pond water to become smelly. In this case, change the water immediately, and then feed with EM bacteria concentrate feed and spray with diluted solution according to technical requirements.

Additional information

Mechanism of action

After the EM bacteria concentrate penetrates into the water body, its group action can kill or inhibit pathogenic microorganisms and harmful substances, adjust the aquaculture ecological environment, increase the dissolved oxygen (oxygen) in the water, promote the activation and growth of normal bacteria and beneficial algae in the aquaculture ecosystem, and maintain the ecological balance of the aquaculture water body; mixing it into bait for feeding can directly enhance the fish's absorption function and disease resistance and stress resistance, and promote healthy growth.

The photosynthetic bacteria in the EM bacteria stock solution can also use hydrogen sulfide, organic acids, ammonia and amino acids in the water to remove ammonium nitrite in the water through denitrification, thereby purifying the excrement and residual bait pollution in the breeding pond, improving water quality and reducing fish diseases. The main functions are:

1. Reduce pathogenic microorganisms and unhealthy algae, significantly enhance the immunity and disease resistance of aquaculture objects, reduce morbidity, and improve survival rate. Users reported that EM bacteria stock solution can nearly double the survival rate of crab seedlings, and the survival rate of Chinese grouper has increased from the original 30% to more than 70%.

2. Increase the number of beneficial microorganisms. The number of zooplankton and beneficial algae on the water surface increases, especially the number of red worms, which continue to increase and cover the water surface.

3. Stabilize and improve water quality. The water is clear, not smelly or rotten, and has no odors such as hydrogen sulfide and ammonia. The visibility is at 25-50cm for a long time and is relatively stable. The water change time can be extended by more than 2 times.

4. Fish and shrimp feces, impurities and waste materials at the bottom of the pond will not turn into silt but appear as loose sand.

5. Promote growth and significantly increase the weight gain rate. Practice has shown that under the same environment, after using EM bacteria stock solution, the turtles can be put on the market 10-15 days earlier, the average per mu yield will increase by 20%-35%, the egg laying volume will increase by 25%, and the egg laying time will be extended. Some experiments have shown that after using EM bacteria stock solution in a new turtle pond at room temperature, the egg laying time is extended by nearly 70 days, the hatching rate is better, the bait is not smelly, and the breeding environment is improved.

In a fish fry experiment at a fish farm in the suburbs of Beijing, the weight of the fish fry in the experimental group was twice that of the control group. In a small-scale shrimp farming experiment conducted by a college in Xiamen, the weight gain rate reached 166.7%.

Super EM bacteria activation method: 1 bottle of bacteria + 4 catties of brown sugar + 80 catties of water + sealed fermentation for 24 hours = 84 catties of stock solution;

1. When stocking the fry in the pond: use 30ml of activated bacterial solution to 10kg of water, soak the fry for 15 minutes; 3-5 days before stocking, sprinkle 2kg of activated bacterial solution per acre of water throughout the pond, and use it once every 15 days or so;

2. Spray the whole pond: Use 1kg of activated bacterial solution per mu of water, which can be used twice in a row. Use it once every 10 days in the middle and late stages of breeding, and increase the dosage to 2kg/mu as appropriate;

3. Mix with feed and feed: Use 0.5 kg of activated bacterial liquid for 100 kg of feed, twice a day, for 3-5 days.

Turbid pond water may be caused by the dominant species of diatomaceous algae or golden algae. Usually, this is not a big deal, but once the weather changes suddenly, causing a large number of algae to die, they will produce toxins, causing the water to deteriorate, and even directly causing fish poisoning and death.

If it turns red, it must be improved in time. You can do this by spraying Nong Sheng Le Aquatic EM bacteria liquid into the pond.

The role of aquatic em bacteria liquid

1. Increase the amount of dissolved oxygen in the water and enhance the photosynthetic effect

2. Improve water quality, eliminate harmful bacteria, enhance immunity, reduce morbidity and losses

3. Improve product quality, growth efficiency, breeding rate and growth efficiency

4. Reduce the use of drugs and produce organic food; it has a good control effect on fish floating and pond flooding;

As for the method of using the bacterial solution, it is very simple. First, 3 days before stocking the shrimps, use 5-8 kg of Nongshengle aquatic bacterial solution per acre of water surface, dilute it 50 times and spray it all over the pond. Secondly, after stocking, use 1 kg of Nongshengle EM bacterial solution per acre, spray it for 10 consecutive days, and then spray it 2-3 times a month depending on the water quality.