CATDOLL : CATDOLL: How to solve ammonia poisoning in fish?

1. How to solve ammonia poisoning in fish?

[Causes] (1) The pond is aging and the bottom sediment contains too much organic matter. The organic matter decomposes and produces a large amount of ammonia, causing the fish to float to the surface.

(2) Too much bait is fed, and the remaining bait decomposes to produce ammonia, causing the ammonia concentration in the water to be too high, causing the fish to float to the surface.

(3) The pond water is too thin, and the amount of phytoplankton in the water is small. Since dissolved oxygen mainly comes from the photosynthesis of phytoplankton, if there are few phytoplankton, the dissolved oxygen is low, and ammonia nitrogen cannot be converted into non-toxic nitrite nitrogen through oxidation, thus accumulating in the water and causing ammonia poisoning. In addition, phytoplankton absorbs nitrogen as a synthetic nutrient to grow. If there is a small amount of phytoplankton, ammonia nitrogen cannot be effectively absorbed, causing ammonia nitrogen accumulation. Thus, ammonia poisoning occurs. [Symptoms] Ammonia poisoning fish show collective floating heads. Since the process of ammonia poisoning in fish is a process of excitement followed by inhibition, acute poisoning can be seen with increased secretion of mucus on the gills and body surface, bleeding on the body surface and gill cover, followed by tail tremors, and then turning to slow reaction, difficulty breathing and failure and death. Subacute poisoning causes the gill filaments to swell and adhere to each other. Since fish are in contact with sublethal concentrations or even lower concentrations of ammonia for a long time, red blood cells are hemolyzed, the oxygen carrying capacity of the blood is reduced, CO2 in the blood increases, and respiratory function decreases, leading to acidemia.

2. How to deal with ammonia nitrogen poisoning in fish? Urgent?

Sprinkle hydrogen peroxide at night, because dinoflagellates or naked algae are dominant in the water, not only is the ammonia nitrogen high, but the nitrite is likely to be high. On foggy and rainy nights, the dissolved oxygen is low. Hydrogen peroxide can increase the dissolved oxygen, quickly purify the water quality and kill harmful algae, and it also has an inhibitory and preventive effect on pathogens. The content is 27%, 3-5 kilograms per acre, and it can be used twice in the first and second half of the night.

As we all know, organic acid can detoxify and stimulate appetite, while zeolite powder absorbs ammonia and supplements trace elements. The coordination of the two makes it easy to convert green water. When the water temperature is high, adding some bacterial fertilizer will have a better effect. []

3. What are the manifestations and symptoms of ammonia nitrogen poisoning in fish tanks?

The ammonia nitrogen content in fish farming water will have a great impact on the growth and development of ornamental fish. This also depends on the species of ornamental fish. Some ornamental fish can tolerate ammonia nitrogen, while some ornamental fish will die immediately if there is a little ammonia nitrogen in the water.

Generally speaking, the ammonia nitrogen concentration in fish tanks for raising ornamental fish should be less than 0.2 mg per liter. If it exceeds the standard, the fish will show various symptoms of discomfort or ammonia nitrogen poisoning, and it may even cause many diseases in ornamental fish without us knowing it. So, what specific methods can we use to quickly determine whether the ammonia nitrogen in the water exceeds the standard?

1. First, we must learn to see the water color

Regarding this point, the experienced fish farmer has mentioned it many times in previous articles. Normal water color should be transparent and clear. A slight yellow or green color is not a problem, but if the water is turbid, black or dark brown, then there is definitely a problem. This is very easy to judge and we can see it at a glance.

2. Look at the viscosity of the water

To put it simply, it depends on whether there is too much oil film on the water surface, or whether the water is fermented due to dirty water or high temperature. Whether it is our oxygen supply or the sewage filtered in the fish tank, the foam on the water surface they bring will generally break in a very short time, basically a matter of seconds. If these bubbles do not break within a long time, but accumulate more and more, this proves that the water is too old or there are too many organic matter.

3. Check the debris at the bottom of the tank

This is also a very simple problem. If there is too much debris and fish feces accumulated at the bottom of the tank, a thick layer of sticky substance will be formed. This is not a bacterial film or moss, but just a large amount of garbage accumulation. We should remove it in time.

4. Look at physical filtration

This includes whether the filter cotton is dirty, whether it is overflowing, whether it should be cleaned and replaced. If the filter cotton is too dirty, the biochemical cotton underneath should also be checked. We cannot ignore this detail, especially when there are too many fish being raised and the amount of feeding is quite large.

5. Fishy smell

If there is a pungent fishy smell in the fish tank, this of course indicates that there are too many impurities in the water, it is seriously aged, and the ammonia nitrogen content is already quite high.

4. How to take rescue measures after shrimp is poisoned by ammonia nitrogen?

Based on the situation you described, I believe that the shrimps are poisoned by ammonia nitrogen: Symptoms of ammonia nitrogen poisoning: swimming around randomly, sometimes floating, sometimes sinking, sometimes jumping and struggling, swimming slowly, paralyzed and weak, dark body, black gills, increased mucus, and finally losing vitality, slowly sinking to the bottom of the water and dying. The rescue measures for ammonia nitrogen poisoning are as follows:

1. Add new water in time to dilute the pool water to reduce the concentration of ammonia nitrogen in the pool water to prevent the poisoning from getting worse;

2. Turn on the aerator and add granular oxygen. Improving the dissolved oxygen in the water can promote the nitrification of ammonia and convert it into nitrate nitrogen and nitrite nitrogen;

3. For shrimps cultured in freshwater, 17 kg of salt can be sprinkled in the pond at a water depth of 1 meter per mu to prevent ammonia nitrogen and nitrate nitrogen from continuing to invade the shrimp blood and deepen the poisoning phenomenon;

4. Sprinkle zeolite powder to absorb harmful gases and harmful substances at the bottom of the pool;

5. After the poisoning is relieved, disinfectants should be added to the water to sterilize it to prevent bacterial infection;

6. Microecological agents such as photosynthetic bacteria and Bacillus subtilis have a significant degradation effect on ammonia nitrogen in water bodies. If you have other questions, please communicate with me in time. Based on the situation you described, I judge that the shrimp is poisoned by ammonia nitrogen: Symptoms of ammonia nitrogen poisoning: swimming around, floating from time to time, sinking from time to time, jumping and struggling, swimming slowly, paralysis and weakness, dark body, black gills, increased mucus, and finally losing vitality, slowly sinking to the bottom of the water and dying. The rescue measures for ammonia nitrogen poisoning are as follows: 1. Add new water in time to dilute the pool water to reduce the ammonia nitrogen concentration in the pool water to prevent the poisoning from getting worse; 2. Turn on the aerator and add granular oxygen. Improving the dissolved oxygen in the water can promote the nitrification of ammonia and convert it into nitrate nitrogen and nitrite nitrogen; 3. For shrimps farmed in freshwater, 17 kg of salt can be sprinkled in the pond at a depth of 1 meter per mu to prevent ammonia nitrogen and nitrate nitrogen from continuing to invade the shrimp blood and deepen the poisoning phenomenon; 4. Sprinkle zeolite powder to absorb some harmful gases and harmful substances at the bottom of the pond; 5. After the poisoning is relieved, disinfectants should be added to the water body for sterilization to prevent bacterial infection; 6. Microecological preparations such as photosynthetic bacteria and Bacillus subtilis have a significant degradation effect on ammonia nitrogen in the water. If you have other questions, please communicate with me in time.

5. How to detoxify ornamental fish from ammonia nitrogen poisoning?

Detoxification savior first aid kit. Its main ingredients are anti-stress factors and ammonia nitrogen adsorbents, which can improve the body's detoxification and detoxification functions, protect cells and liver, and enhance the fish's immunity.

The key point is that it can absorb ammonia nitrogen and drug residues in the fish tank. It can remove toxins in the water, increase the amount of dissolved oxygen in the water, and remove residual chlorine in the water. It can remove impurities in the water and make the water clean. It can alleviate the abnormal growth of fish liver metabolism caused by excessive coloring, and it can also regulate the intestines to promote fish to eat, speed up fish metabolism, and promote color development.

It can be used when fish are under stress due to water quality deterioration. It can quickly detoxify and absorb ammonia nitrogen.

It can also be added in normal proportions during daily water changes to improve water quality, regulate the fish's intestines, protect the fish's liver and enhance immunity.

6. What are the causes of ammonia nitrogen poisoning in fish ponds?

Ammonia nitrogen is caused by the excrement in the fish pond that is not cleaned up in time, which leads to excessive ammonia nitrogen in the fish pond over time. Therefore, it is necessary to strengthen the filtration system. The Xipu fish pond can be filtered to remove the excrement in the fish pond and make the water quality of the fish pond clear.

7. What is the difference between ammonia nitrogen and nitrogen?

Ammonia nitrogen is a type of nitrogen, which also includes organic nitrogen, nitrate nitrogen, etc.

8. Determination of ammonia nitrogen?

In the magnesium oxide distillation method, the sample is adjusted to neutrality. Magnesium oxide is added to create a weakly alkaline environment so that ammonium nitrogen can be distilled out. In an environment where the pH value is greater than 11, the ammonium ion is converted into ammonia, and the ammonia is transferred through the hydrophobic membrane of the ammonia-sensitive electrode, causing the electromotive force of the ammonia-sensitive electrode to change. The instrument measures the concentration of ammonia nitrogen based on the change in electromotive force.

10% zinc sulfate solution: Weigh 10g zinc sulfate and dissolve it in water, dilute 100ml, and store in a glass reagent bottle.

25% sodium hydroxide solution: Weigh 25g of sodium hydroxide and dissolve it in water, dilute to 100ml, and store in a polyethylene bottle.

9. What is the significance of ammonia nitrogen?

Harm to humans: Ammonia nitrogen in water can be converted into nitrite under certain conditions. If you drink it for a long time, the nitrite in the water will combine with protein to form nitrosamines, which is a strong carcinogen and extremely harmful to human health. Long-term drinking of water with a nitrate nitrogen (NO3--N) content exceeding 10 mg/L will cause methemoglobinemia. When the methemoglobin content in the blood reaches 70 mg/L, suffocation will occur. Nitrite nitrogen (NO2--N) in water reacts with amines to produce nitrosamines, which are "tri-causing" substances. Ammonium nitrogen (NH4+-N) reacts with chlorine to produce chloramines, which have a smaller disinfecting effect than free chlorine. Therefore, when ammonium nitrogen is present, water treatment plants will need to add more chlorine, thereby increasing treatment costs.

In recent years, the indiscriminate discharge of wastewater containing ammonia nitrogen has caused drinking water difficulties for humans and animals and even poisoning incidents. There have been related reports in the Yangtze River, Huaihe River, Qiantang River, Sichuan Tuojiang River and other river basins in my country. The corresponding areas have experienced major incidents such as blue algae pollution causing drinking water difficulties for millions of residents and related waters being "implicated". Therefore, removing ammonia nitrogen from wastewater has become one of the research hotspots for environmental workers.

Harm to the ecological environment: Ammonia nitrogen is the main oxygen-consuming pollutant in water bodies and is toxic to fish and some aquatic organisms. Due to the oxidation of NH4+-N, the dissolved oxygen concentration in the water body will decrease, causing the water body to become black and smelly, and the water quality to decline, affecting the survival of aquatic plants and animals. Under favorable environmental conditions, the organic nitrogen contained in the wastewater will be converted into NH4+-N. NH4+-N is the inorganic nitrogen form with the strongest reducing power, and will be further converted into NO2--N and NO3--N. According to the stoichiometric relationship of biochemical reactions, 1g NH4+-N is oxidized to NO2--N, consuming 3.43g of oxygen, and oxidized to NO3--N, consuming 4.57g of oxygen.

At the same time, ammonia nitrogen is a nutrient in water. Due to the presence of nitrogen, the number of photosynthetic microorganisms (mostly algae) increases, that is, eutrophication occurs in water bodies, resulting in: clogging of filter pools, resulting in a shortened filter pool operation cycle, thereby increasing the cost of water treatment; hindering water sports; the final product of algae metabolism can produce compounds that cause color and taste; due to the toxins produced by blue-green algae, livestock are damaged and fish die; due to the decay of algae, oxygen deficiency occurs in water bodies. Its toxicity is dozens of times greater than that of ammonium salts. The composition ratio of free ammonia (NH3) and ammonium salts (NH4+) depends on the pH value and temperature of water. When the pH value and temperature are high, the proportion of free ammonia is higher, and vice versa, the proportion of ammonium salts is higher.

Hazards to aquatic life: Ammonia nitrogen can be acute or chronic. Chronic ammonia nitrogen poisoning is harmful for: reduced food intake, slowed growth, tissue damage, and reduced oxygen transport between tissues. Excessive ammonia nitrogen can damage the gills of fish and clams. When it is higher than 0.5 mg/L, it can cause inability to eat and breathe, and even death. Acute ammonia nitrogen poisoning is harmful for: aquatic life becomes excited, loses balance in the water, convulses, and even dies in severe cases. To protect freshwater life, the concentration of non-ionized ammonia in water should be lower than 0.02 mg/L.

10. What is the proportion of ammonia nitrogen to total nitrogen?

If it is domestic sewage, ammonia nitrogen will generally account for more than 80% of the total nitrogen. If it is industrial wastewater, it depends on what industry the wastewater comes from. The indicators for each industry are different.