First, the treatment of nitrite is too high
When shrimp pool nitrite gradually accumulates to 0.1 mg/l, it will form chronic poisoning of shrimp. Therefore, even if the dissolved oxygen in the pool is sufficient, the shrimp will float on the surface of the water and appear diseased, swimming around or swimming on the shallow water bank. When the shrimp pond concentration reaches 0.25 mg/l or more, the shrimp body becomes red, the food intake decreases, the breathing is difficult, the manic or unresponsive, and even death.
The way to deal with high nitrites is: 1 start the aerator, increase the flow of water and provide sufficient oxygen. 2 Use ecological water treatment agents, such as: Ecological Water Rescue or Greenway King 1 kg/acre. After 35 hours, 2.5 to 3.5 kg/mu of lime are poured per acre to increase the pH of the water body. 4 If the weather is fine the next morning, it is necessary to supplement the special aquatic fertilizers and beneficial bacteria in water. The method is: fertilize first, then apply beneficial bacteria 2 to 3 hours later. For example, compound EM bacteria (5 kg/mu) and powdered complex bacillus (1 kg/mu) of the liquid agent will be mixed and soaked for 3 to 4 hours and the effect will be better. After pouring, in order to prevent biological hypoxia, oxygen should also be noted. After such treatment for 3 to 4 days, the pool water will return to its original good color and nitrite will disappear. If nitrite does not completely disappear, consider spilling the beneficial bacteria once more.
Second, the treatment of ammonia nitrogen is too high
Ammonia nitrogen in normal cultured water does not exceed 0.2 mg/l. When the ammonia nitrogen exceeds this value, the appetite of shrimp decreases, the growth rate decreases, and the resistance to environmental adaptability and disease weakens. Pool edge floating head appears when serious.
When the ammonia nitrogen is too high, the treatment measures are as follows: (1) Increase the aeration rate and maintain sufficient dissolved oxygen in the water. Whenever possible, changing the water will also reduce the ammonia content. 2 Use water treatment agents, such as detoxification king, fresh guard element, ammonia nitrogen, etc. Quanchiposa, through chemical action, ammonia reduction and nitrogen removal. 3 Use microbial preparations, such as photosynthetic bacteria, neophytin, and probiotics. 4 Breeding of phytoplankton, keeping the water body fairly fertile and effective in removing ammonia, such as the use of vigor or algae rejuvenating agents. 5 The use of bottom modifiers, such as quick-impact ammonia-reducing reagents. 6 Use zeolite powder 30-40 kg/mu to remove ammonia nitrogen.
The above dosage can refer to the dosage of the product manual. If the ammonia-nitrogen content in the pool water is high, the dosage of the instructions can be increased by about 10%.
Third, the treatment of low or high pH
The optimum pH of shrimp ponds is 7.8 to 8.8, and fluctuations on the day should be less than 0.5. Above pH 9.2, Penaeus vannamei is obviously unwell and often swims in groups. Long-term occurrence of dead shrimp occurs. Low pH results in soft shell and low survival rate of shrimp, inhibiting its growth. Generally below 7.0 pH, shrimp survival rate is extremely low.
Low pH treatment: 1 20 g/m3 quicklime can be used to increase the pH around 0.5. Haizhongbao can also adjust. After special storms or long-term change of water, it should be adjusted. 2 Proliferation of phytoplankton rapidly, algal blooms flourish, then the pH value also increases, and algae regenerators can often be used for treatment.
There are three ways to deal with high pH values: 1 Inject new water, and change the amount of water. 2 Use oxytolacrine or use zeolite powder to reduce ammonia or soy beans 2.5 to 3 kg/mu?m (dip, break and boil for 5 minutes). In the greenhouse, shrimp can be used for vinegar and splashed in the whole pond and immediately bear fruit. 3 Use EM liquid to spray evenly throughout the pool to reduce the pH and stabilize the pH.
IV. Handling H2S too high
Under normal circumstances, the hydrogen sulfide in shrimp ponds must not exceed 0.01 mg/l. When the concentration of hydrogen sulfide was 0.1 to 0.2 mg/l in the pool water, the body of the Penaeus vannamei lost its balance and immediately died when the concentration was 4.0 mg/l.
The treatment of hydrogen sulfide is too high: 1 increase oxygen, maintain high levels of dissolved oxygen in the water, in order to facilitate the decomposition of organic matter. When appropriate, the water can be changed. 2 Reduce the amount of feed and reduce the load of organic matter in the pool. 3 Lime, iron-containing slag or zeolite powder and other water quality, bottom modifier. Quicklime can be added at a rate of 20 mg/litre. 4 Maintain a stable phytoplankton community and absorb toxic substances. 5 Apply beneficial bacteria such as nitrifying bacteria, sulfur bacteria and yeast in the shrimp pond to convert and remove hydrogen sulfide. 6 When the shrimps have been harvested, wash the sludge at the bottom of the tank and expose them to the sun to remove the black mud or mud with more sulfides at the bottom of the tank to improve the bottoms.
V. Handling Shrimp Pond "Flood Bottom"
The treatment method is mainly to stabilize the water quality: (1) Use the bottom quality modifier, such as Lushuiquan Quanchiposa. 2 Strengthen oxygen strength and maintain enough oxygen in shrimp pond water. 3 Use an ecological water protection spirit such as 1kg/mu?m or Shinsegae to splash in the whole pool.
When shrimp pool nitrite gradually accumulates to 0.1 mg/l, it will form chronic poisoning of shrimp. Therefore, even if the dissolved oxygen in the pool is sufficient, the shrimp will float on the surface of the water and appear diseased, swimming around or swimming on the shallow water bank. When the shrimp pond concentration reaches 0.25 mg/l or more, the shrimp body becomes red, the food intake decreases, the breathing is difficult, the manic or unresponsive, and even death.
The way to deal with high nitrites is: 1 start the aerator, increase the flow of water and provide sufficient oxygen. 2 Use ecological water treatment agents, such as: Ecological Water Rescue or Greenway King 1 kg/acre. After 35 hours, 2.5 to 3.5 kg/mu of lime are poured per acre to increase the pH of the water body. 4 If the weather is fine the next morning, it is necessary to supplement the special aquatic fertilizers and beneficial bacteria in water. The method is: fertilize first, then apply beneficial bacteria 2 to 3 hours later. For example, compound EM bacteria (5 kg/mu) and powdered complex bacillus (1 kg/mu) of the liquid agent will be mixed and soaked for 3 to 4 hours and the effect will be better. After pouring, in order to prevent biological hypoxia, oxygen should also be noted. After such treatment for 3 to 4 days, the pool water will return to its original good color and nitrite will disappear. If nitrite does not completely disappear, consider spilling the beneficial bacteria once more.
Second, the treatment of ammonia nitrogen is too high
Ammonia nitrogen in normal cultured water does not exceed 0.2 mg/l. When the ammonia nitrogen exceeds this value, the appetite of shrimp decreases, the growth rate decreases, and the resistance to environmental adaptability and disease weakens. Pool edge floating head appears when serious.
When the ammonia nitrogen is too high, the treatment measures are as follows: (1) Increase the aeration rate and maintain sufficient dissolved oxygen in the water. Whenever possible, changing the water will also reduce the ammonia content. 2 Use water treatment agents, such as detoxification king, fresh guard element, ammonia nitrogen, etc. Quanchiposa, through chemical action, ammonia reduction and nitrogen removal. 3 Use microbial preparations, such as photosynthetic bacteria, neophytin, and probiotics. 4 Breeding of phytoplankton, keeping the water body fairly fertile and effective in removing ammonia, such as the use of vigor or algae rejuvenating agents. 5 The use of bottom modifiers, such as quick-impact ammonia-reducing reagents. 6 Use zeolite powder 30-40 kg/mu to remove ammonia nitrogen.
The above dosage can refer to the dosage of the product manual. If the ammonia-nitrogen content in the pool water is high, the dosage of the instructions can be increased by about 10%.
Third, the treatment of low or high pH
The optimum pH of shrimp ponds is 7.8 to 8.8, and fluctuations on the day should be less than 0.5. Above pH 9.2, Penaeus vannamei is obviously unwell and often swims in groups. Long-term occurrence of dead shrimp occurs. Low pH results in soft shell and low survival rate of shrimp, inhibiting its growth. Generally below 7.0 pH, shrimp survival rate is extremely low.
Low pH treatment: 1 20 g/m3 quicklime can be used to increase the pH around 0.5. Haizhongbao can also adjust. After special storms or long-term change of water, it should be adjusted. 2 Proliferation of phytoplankton rapidly, algal blooms flourish, then the pH value also increases, and algae regenerators can often be used for treatment.
There are three ways to deal with high pH values: 1 Inject new water, and change the amount of water. 2 Use oxytolacrine or use zeolite powder to reduce ammonia or soy beans 2.5 to 3 kg/mu?m (dip, break and boil for 5 minutes). In the greenhouse, shrimp can be used for vinegar and splashed in the whole pond and immediately bear fruit. 3 Use EM liquid to spray evenly throughout the pool to reduce the pH and stabilize the pH.
IV. Handling H2S too high
Under normal circumstances, the hydrogen sulfide in shrimp ponds must not exceed 0.01 mg/l. When the concentration of hydrogen sulfide was 0.1 to 0.2 mg/l in the pool water, the body of the Penaeus vannamei lost its balance and immediately died when the concentration was 4.0 mg/l.
The treatment of hydrogen sulfide is too high: 1 increase oxygen, maintain high levels of dissolved oxygen in the water, in order to facilitate the decomposition of organic matter. When appropriate, the water can be changed. 2 Reduce the amount of feed and reduce the load of organic matter in the pool. 3 Lime, iron-containing slag or zeolite powder and other water quality, bottom modifier. Quicklime can be added at a rate of 20 mg/litre. 4 Maintain a stable phytoplankton community and absorb toxic substances. 5 Apply beneficial bacteria such as nitrifying bacteria, sulfur bacteria and yeast in the shrimp pond to convert and remove hydrogen sulfide. 6 When the shrimps have been harvested, wash the sludge at the bottom of the tank and expose them to the sun to remove the black mud or mud with more sulfides at the bottom of the tank to improve the bottoms.
V. Handling Shrimp Pond "Flood Bottom"
The treatment method is mainly to stabilize the water quality: (1) Use the bottom quality modifier, such as Lushuiquan Quanchiposa. 2 Strengthen oxygen strength and maintain enough oxygen in shrimp pond water. 3 Use an ecological water protection spirit such as 1kg/mu?m or Shinsegae to splash in the whole pool.
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