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  • Why Your Fish Are Dying in Summer? 3 Chlorine Mistakes Every Aquaculturist Makes

    Time:June 27, 2025

      In the field of aquaculture, summer should be the golden period for the healthy growth of fish and shrimp. However, many aquaculturists have encountered nightmarish troubles - a large number of fish and shrimp die during the high - temperature season, resulting in the complete loss of the previously invested aquaculture costs. Take Boss Zhang as an example. He runs a medium - sized fishpond and was looking forward to a good harvest this summer. But recently, he has been frowning. After professional testing, it was found that the residual chlorine content in the pond water exceeded the standard by three times! This astonishing result has forced everyone to focus on residual chlorine, the "invisible killer". Now, let the chlorine sensor Manufacturer, Maideshi, explain it in detail for you!

      Why is the residual chlorine problem so prominent in summer aquaculture?

      On the one hand, the residual chlorine in the water sources in summer is generally high. Many aquaculturists directly pour disinfectant water into the ponds for disinfection, without realizing that this actually causes fish and shrimp to be poisoned.

      On the other hand, the traditional manual detection method has significant limitations. Manual detection often takes a certain amount of time and effort, and the detection cycle is long. By the time the excess residual chlorine is detected, the best time for treatment may have already passed.

      In addition, some aquaculturists blindly rely on past experience to change the water, but this method cannot precisely control the residual chlorine concentration, and the problem remains unsolved.

      So, what exactly is the reasonable range of residual chlorine in aquaculture? The relevant scientific standards have given a clear answer. In aquaculture, the safe value of residual chlorine should be controlled at ≤ 0.02mg/L. The residual chlorine content in the water that fish and shrimp are exposed to for a long time must be lower than this threshold. When the residual chlorine concentration reaches ≥ 0.1mg/L, it enters the critical value of acute poisoning, which is likely to cause the death of fish and shrimp within 24 hours. During the fry - rearing period, the requirement for residual chlorine is even more strict, and it must be strictly controlled within 0.005mg/L.

      The online water quality automatic monitoring instrument plays a crucial role in solving the problem of excess residual chlorine. The Digital residual chlorine sensor in the online residual chlorine detector has a real - time monitoring function and can achieve second - level response. It is like an indefatigable "water quality guard", dynamically capturing every change in the residual chlorine concentration. Aquaculturists no longer have to worry about waiting for a long time for the test results. At the same time, the monitoring instrument also has an intelligent early - warning function. Aquaculturists can customize the alarm threshold of 0.02mg/L according to the scientific standards of aquaculture. Once the residual chlorine concentration exceeds the standard, the monitoring instrument will automatically cut off the water inflow to minimize losses. Moreover, it can trace the data. The monitoring instrument stores the data in the cloud for up to three years. Aquaculturists can analyze these data to find out the law of residual chlorine fluctuations and take preventive measures in advance.

      Real - life cases are the most persuasive. After a certain shrimp pond installed an online water quality automatic analyzer, remarkable results were achieved. The incidents of excess residual chlorine were reduced by 90%, and the survival rate of shrimp fry increased by 35%! These data fully prove the great value of the online water quality detector in aquaculture.

      Don't let residual chlorine ruin your entire aquaculture season! For the majority of aquaculturists, an online water quality detector is like a reliable "aquaculture partner" that can safeguard your summer harvest. It can not only help you detect the problem of excess residual chlorine in a timely manner but also provide you with scientific solutions. Don't hesitate any longer. Welcome to consult the chlorine sensor Manufacturer, Maideshi, at any time to escort your aquaculture business!

    The Invisible Killer in Your Pond "We lost $28,000 worth of tilapia in 48 hours last summer. The culprit? Chlorine from our water supply." - Michael T., Florida fish farm Summer water treatments contain 2-4X more chlorine than other seasons. Traditional testing misses these spikes until it's too late. 3 Deadly Chlorine Errors (And How to Fix Them) ❌ Mistake 1: Trusting Municipal Water Reports City water tests upstream of disinfectant injection Your pond receives chlorine-rich refill water ✅ Solution: Install an IoT chlorine monitor at water inlet points ❌ Mistake 2: Using "Safe for Humans" Standards Species EPA Safe Level Lethal Threshold Tilapia ≤0.01 ppm 0.05 ppm Shrimp ≤0.005 ppm 0.02 ppm Catfish Fry ≤0.002 ppm 0.01 ppm ✅ Solution: Set species-specific alarms on your digital sensor ❌ Mistake 3: Manual Testing During Heatwaves Chlorine volatility increases 300% above 30°C Weekly tests miss danger spikes ✅ Solution: 24/7 monitoring with cloud-based alerts How Texas Farms Reduced Mortality by 40% Step 1: Installed Maideshi MDS-700 sensors at all water entry points Step 2: Automated chlorine logging for FDA compliance reports Step 3: Integrated SMS alerts for staff when levels exceed thresholdsThe Invisible Killer in Your Pond "We lost $28,000 worth of tilapia in 48 hours last summer. The culprit? Chlorine from our water supply." - Michael T., Florida fish farm Summer water treatments contain 2-4X more chlorine than other seasons. Traditional testing misses these spikes until it's too late. 3 Deadly Chlorine Errors (And How to Fix Them) ❌ Mistake 1: Trusting Municipal Water Reports City water tests upstream of disinfectant injection Your pond receives chlorine-rich refill water ✅ Solution: Install an IoT chlorine monitor at water inlet points ❌ Mistake 2: Using "Safe for Humans" Standards Species EPA Safe Level Lethal Threshold Tilapia ≤0.01 ppm 0.05 ppm Shrimp ≤0.005 ppm 0.02 ppm Catfish Fry ≤0.002 ppm 0.01 ppm ✅ Solution: Set species-specific alarms on your digital sensor ❌ Mistake 3: Manual Testing During Heatwaves Chlorine volatility increases 300% above 30°C Weekly tests miss danger spikes ✅ Solution: 24/7 monitoring with cloud-based alerts How Texas Farms Reduced Mortality by 40% Step 1: Installed Maideshi MDS-700 sensors at all water entry points Step 2: Automated chlorine logging for FDA compliance reports Step 3: Integrated SMS alerts for staff when levels exceed thresholds



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