Today, aquaculture farms are increasingly being expanded and developed. During the process of caring for and raising aquatic species, if the water source isn’t cleaned regularly, the pond water can easily become polluted. So if you encounter this situation, what methods are there to treat polluted fish pond water? Let’s join Duc Binh Microbial Products and discover “Solutions for treating foul-smelling fish pond water quickly and thoroughly ” in the article below.
Foul-smelling, polluted fish pond water is a very common phenomenon that needs quick treatment
1. Causes of foul-smelling fish pond water
Each different cause of polluted, foul-smelling fish pond water requires a different treatment method. This will help us treat it more effectively. This, in turn, ensures the aquaculture water source isn’t polluted and helps the organisms grow better. Below are the main causes leading to this situation as follows:
1.1. Using industrial feed causes foul-smelling ponds and water pollution
Feed for aquatic species today is mainly industrial. The composition of these products all contains a lot of protein and phosphorus. Although this is considered an abundant nutrient source, if the amount of feed dropped for the shrimp and fish is too much, exceeding their consumption capacity, the leftover feed will settle to the pond bottom.
Along with that is the amount of settled waste excreted by the shrimp and fish daily, which also clearly increases the amount of solid organic waste in the pond. Initially, these substances exist suspended in the water or settled at the bottom.
If not treated promptly, they will decompose anaerobically, causing the pond water to change color, develop a foul fishy smell, and produce toxic substances. High levels of toxic substances not only reduce water quality but also directly affect the health and immunity of the shrimp and fish, and in the long run will significantly reduce the value of the aquaculture product.
1.2. Accumulation of organic matter from other sources
Besides feed and fish waste, pond water can also be polluted by other organic matter sources such as decayed aquatic plants, fallen leaves, rotten algae, or even the remains of small animals and insects that fall into the pond. These organic materials remain suspended in the water environment. You need to treat this situation periodically to prevent water pollution.
The cause of a foul-smelling, polluted fish pond can come from the fish feed itself
1.3. Increased pH after the rainy/flood season also causes foul odor and water pollution
Vietnam has a hot, humid climate with relatively heavy rainfall and a high number of storms each year. After heavy rain or floods, a large amount of rainwater diluting the pond water can raise the water’s pH or lower it suddenly, causing shock to the fish because rainwater contains mild acids. This is also considered a cause of pond water pollution.
In addition, rain also causes the soil around the pond to become contaminated with alum, and water seeping into the soil will carry the alum into the pond. This situation causes heavy metals such as iron and dissolved aluminum in the fish pond water to increase abnormally and lower the pH, creating a harsh environment for the fish.
When the concentration of alum and iron ions in the water is too high, shrimp and fish will have difficulty breathing. This leads to poor nutrient absorption, significantly affecting their health, and can lead to mass die-offs of shrimp and fish.
1.4. Sudden environmental changes cause foul-smelling, polluted pond water
The weather is increasingly showing unusual patterns, such as sudden temperature changes between day and night or between seasons, causing shrimp and fish to tend to have reduced resistance. This makes it easier for disease-causing viruses and bacteria to attack their bodies. If there is no timely treatment plan, the pond is very likely to become polluted, leading to a widespread disease outbreak.
Environmental changes also cause the pond water to become foul-smelling and polluted
2. Other factors that cause foul-smelling, polluted fish pond water
Besides the causes mentioned above, there are other factors that contribute to increased fish pond water pollution, as follows:
- Overstocking density: Raising a large number of fish in a small pond area can increase organic waste load, quickly consume oxygen, and create an ideal environment for pathogens to develop.
- Lack of filtration/aeration systems: A fish pond without an effective water filtration system or aeration equipment will find it very difficult to maintain stable water quality. Accumulated waste causing reduced dissolved oxygen is unavoidable.
- Pollution from the water supply source: If the water supplied to the pond isn’t checked and treated, it may carry pollutants from outside such as industrial/household waste or pesticides and chemical fertilizers from nearby fields and gardens
- Dead aquatic plants: Although aquatic plants play an important role in filtering water and providing oxygen, when they die and decompose they become a source of organic matter causing pollution.
- Lack of pond-bottom maintenance: After a period of farming, the pond bottom can accumulate a layer of black sludge containing many toxic substances. If not dredged or treated periodically, this sludge layer will continuously release water pollutants.
3. Harmful effects of foul, murky fish pond water
When the environment is affected by the above causes, if we don’t have a suitable way to treat foul-smelling fish pond water, it will lead to the following harmful effects:
- Organisms living inside the pond will easily get sick and die. This causes major losses for aquaculture farmers. Investment in aquaculture farms is usually very large. If not careful, you could lose everything.
- Foul fish pond water will also seriously affect the surrounding ecological environment. Special attention must be paid to groundwater sources, as pollution can spread and directly affect the health of people living nearby.
- Toxic algae develop when the fish pond is polluted due to increased organic waste in the pond. At this point, pond pollution will be very difficult to treat and can lead to total loss.
- Toxic gases such as ammonium, H2S, nitrogen, or nitrate increase rapidly, causing aquatic species difficulty in respiration and metabolism. This leads to mass die-offs of fish and shrimp due to poisoning.
Not treating foul-smelling, polluted fish pond water in time can cause total loss
4. The most effective ways to treat foul-smelling fish pond water today
If your pond shows signs of pollution, check and treat it immediately, avoiding letting the situation worsen and making treatment increasingly difficult. Below are 6 ways to treat polluted fish pond water for you to reference and apply depending on the situation, as follows:
4.1. Using water treatment chemicals to kill algae in foul-smelling, polluted pond water
If your aquaculture pond is polluted due to algae growing too quickly, the fastest way to treat it is to kill the algae with chemicals. This method is applied by many operators. This method is very simple to perform, brings clear results, and helps users save maximum costs.
Chemicals specifically used to effectively treat algae in fish ponds include copper sulfate, quicklime, BHA, TCCA, etc. Each product will have mixing instructions with the correct ratio and dosage. You should pay attention to using them correctly.
4.2. Treating the pond environment
You should treat the pond environment by cleaning up waste and leaves in the pond on a weekly basis. Or if any dead animals fall in, remove them immediately. This will limit water pollution and prevent the water from going foul, which would kill the shrimp and fish.
Remember to regularly treat the pond environment
4.3. Regular pond dredging is necessary
As mentioned above, one of the causes of pollution in aquaculture ponds is the use of industrial feed. Excess feed settles to the pond bottom along with shrimp and fish waste, causing the pond bed to become polluted.
The way to treat polluted fish pond water in this case is to dredge the pond to ensure the shrimp and fish living environment is always clean and meets standards. However, this activity can take a lot of time, money, and effort. It also requires the person performing it to have high expertise. So, please consider this matter to carry it out at the right time.
4.4 Treating polluted pond water with biological products
Biological products are very safe for the fish’s living environment thanks to containing a large amount of beneficial microbes. They help stabilize the shrimp and fish’s living environment by decomposing organic waste as well as toxins present in the water source.
In addition, these microorganisms also help inhibit and prevent the growth of dangerous bacteria and viruses that cause disease in the organisms. Using biological products for fish ponds periodically, regularly, and continuously is the most thorough solution for treating polluted, foul-smelling fish pond water, helping fish stay healthy, grow quickly, and keeping the pond environment always clean with fewer pathogens.
With this way of treating polluted fish pond water, you can rest completely assured using it for a long time without worrying about affecting the fish, since the residue doesn’t contain toxic substances. Two biological products for rapidly treating foul-smelling fish ponds are Emzeo TS Product and Original EM Product for Aquaculture
Using biological products is the most effective solution for treating polluted, foul-smelling fish ponds
The most thorough solution for treating polluted, foul-smelling fish pond water
Rapid treatment of polluted, foul-smelling fish ponds: One of the ways to quickly treat polluted, foul-smelling pond water without harming the domestic water source is to use the original EM product for aquaculture. Dilute 1 liter of original EM product for aquaculture + 1 pack of 250g Emzeo TS biological product with 100 liters of clean water and spread evenly across the pond surface.
In addition, you can also ferment the original product into secondary EM by combining 1 liter of original product with 37 liters of clean water and 2 liters of molasses. Ferment the mixture anaerobically for 5–7 days, then you’ll obtain 40 liters of original EM product. You can also combine it with Emzeo TS deodorizing yeast for a quicker, clearer effect.
Emzeo TS product has many uses in aquaculture, especially quickly and effectively treating foul fish ponds
Use 40 liters of original EM product mixed with an adequate amount of water, and spray evenly over 1000m² of pond. After a few hours, you’ll see the pond become clear and the unpleasant foul smell disappear. To maintain clean pond water, use the biological product periodically, once every 2 weeks, or treat immediately when you see the pond starting to become murky, polluted, and smelly, avoiding letting the smell become too strong.
⫸ See more: Where to buy the original EM product reputably and with quality
4.5. How to treat polluted pond water with technology
For small aquaculture ponds, you can apply the methods above. But for large ponds, you need to use technological solutions to treat the water. The technology-based methods for treating polluted fish pond water that we can apply include ecological farming, improved extensive farming, and using natural feed. This will help ensure the shrimp and fish’s living environment always achieves the best quality.
If you have long-standing experience in aquaculture, you can choose farming methods such as greenhouse farming, tarpaulin-lined ponds, biofloc, etc. to ensure the pond environment is always clean and safe.
Install an advanced, modern water filtration and oxygen-supplying aeration system
4.6 Water filtration systems used to clarify foul, murky fish pond water
To limit murky pond water and rapid degradation, when constructing the pond you should install an additional automatic water filtration system. This will filter dirt out of the water regularly without requiring manual labor. It will also supply the necessary oxygen for the shrimp and fish’s growth and development.
The most effective water filtration system currently applied for fish ponds is the overflow filter. With this method, you can use several different filter chambers including: coarse filtration, fine filtration, and chemical filtration. This helps keep the fish pond always clear and clean. This filtration system doesn’t take up too much space and doesn’t affect the shrimp and fish’s living space, so you can rest assured when choosing it.
5. Some notes to know when treating foul-smelling, polluted fish pond water
To ensure the way of treating foul-smelling fish pond water achieves the highest effectiveness, you need to choose the appropriate method depending on each stage of fish farming. In the early stage, treating the pond will take more time and effort. Later, once everything is in order, things will follow the right track.
Whether the treatment is effective also depends heavily on environmental factors. You should research the soil, water, and environment of the area to have the right, effective plan for improvement and treatment of polluted water.
When using chemicals to treat pond water, also pay attention to the product’s origin. Mix according to the recommended ratio and chemical concentration. You should not use products of unclear origin, as they will directly affect the fish’s living environment as well as the human living environment.
If the water is severely polluted, the best way is to replace the water source to continue raising fish. This will ensure the shrimp and fish can grow and develop best.
Notes during the process of treating foul-smelling, polluted fish pond water to achieve the best results
Remember that each way of treating foul-smelling, polluted fish pond water will bring different effectiveness and be applied at different stages. So, please research carefully before implementing.
6. Conclusion
The article above has introduced in detail the solutions for thoroughly treating polluted, foul-smelling fish pond water. We hope that with the useful information summarized above, you’ll have more knowledge to promptly treat your fish pond water when it becomes polluted and foul-smelling.
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