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Cause: The alkalinity of the pond bottom is low, but the pond renovation process does not add enough lime. The bottom of the pond has a phenomenon of alum leakage, leading to fluctuations in the alkalinity in the pond, causing the pH to fluctuate erratically and unstable, and the difference in light and height. Treatment: Increase the buffer system of the pond water by adding Caco3 lime at 4am from 10-15 kg/1000m2 continuously until the alkalinity is stable. Increase the salinity of the shrimp pond water by draining a certain amount of water in the pond, and pumping back a quantity of seawater with a higher salinity (or a quantity of quality well water with a high alkalinity). This increases the lime and mineral content in the shrimp pond, thereby increasing the alkalinity. Shrimp raised 20 days old, at night clinging to the pond wall (cement), aeration tanks, and tree poles is a normal phenomenon. Because at this time, the shrimp begin to be active, the need to hunt also increases. Surely after a while, this phenomenon will disappear by itself, because the plankton in the pond is exhausted.
Ponds that have been infected with white spot disease should not be rushed to continue farming. Many cases of urgent treatment for farming often lead to failure. In the immediate future, to avoid spreading to neighboring ponds, if the pond has been cured, hot lime should be spread throughout the pond, including the pond banks and paths; make nets to prevent crabs between ponds; make dummies or stretch ropes to prevent birds. After harvesting all ponds, ponds with white spots can be treated as follows: 1/ If the pond has a plastic lining on the pond bank: remove the plastic lining to soak in and disinfect the plastic and spray the pond bank with disinfectant. 2/ After that, the bottom of the pond must be thoroughly drained of mud, if possible, plow and hoe the pond bottom, then spread agricultural lime: 500kg/1000m2 (if plowing and hoeing have been done, after spreading lime, harrow, level the soil, and roll the pond bottom flat). Pay attention to spreading lime on the pond bank (after removing the plastic). Expose the pond bottom to the sun for 5-7 days, then take about 5cm of water to soak the pond bottom, soak for 3 days, then drain this soaking water, and dry for another 3-5 days. 3/ Take another 5-10cm of water, soak in formalin (3-5 liters formalin/1000m2, water level 5-10cm), or 3-5kg potassium permanganate/1000m2 in the late afternoon, you can also use 5kg chlorine/1000m2), take the water mixed with the chemical and spray it on the pond bank… After 1-2 days, drain this soaking water. 4/ Officially take water into the pond through a filter bag (if taking it into a settling pond, do the same). Take water into the bottom of the pond, use 25kg chlorine/1000m2 – water level 1m). When splashing chlorine, turn on the fan and aerate to evenly distribute the chlorine throughout the pond.
All stages of shrimp development can be infected with this disease. The strongest development stage is from the first month of farming to the second month of farming in shrimp ponds. During the 40-50 day period, the pond environment often begins to deteriorate due to many reasons such as: sludge at the bottom of the pond, excess food accumulation; water changes, use of drugs… When the virus infection germs available in the pond encounter environmental fluctuations that weaken the shrimp’s resistance, it will easily lead to the possibility of disease outbreaks, especially at the time when the shrimp molt… To prevent the disease, the pond must be carefully treated; prevent and eliminate all crustaceans in the pond; select safe shrimp seeds; water changes must be treated; biological products should be used to stabilize the environment.
White feces disease is the most common disease that shrimp often encounter, especially in the rainy season. Today, Viet Uc shares one of the effective ways to overcome and treat white feces disease that some farmers have used and brought good results. That is, you should use intestinal herbs or Berberin for shrimp to eat combined with hydrogen peroxide to treat water. Water treatment dose 1-2ppm (shrimp less than 30 days old). Water treatment dose 4-6ppm (shrimp older than 30 days old). When applying the above method correctly, after 2-3 days, the shrimp will be free of white feces disease. If shrimp farmers like articles that answer questions like this, remember to Like & share so that Viet Uc can continue to share more technical knowledge. Some tips for effective shrimp farming, preventing risks that may occur during the rainy season that farmers need to pay attention to are as follows: Maintain alkalinity at a level above 150mg CaCO3/l. Reduce 30% of feed during the feeding because when it rains, the temperature in the pond is low, the shrimp eat less. At the same time, reduce the amount of feed to avoid excess feed. When it rains heavily, it is necessary to run the fan to stir the water to avoid water stratification. Siphon after the rain stops to suck up all excess residue, algae or food remaining at the bottom of the pond. With some of this filtered, practical and effective information, I am sure that it will accompany shrimp farmers for each more successful farming season in the current weather.
Mr. Seokhee Won is a seasoned leader with over 30 years of experience in international business, currently serving as President and CEO of APAC & Europe for Global Food Business Division – CJ CheilJedang.
He is known for his ability to exceed performance targets, expand global markets, develop brands and optimize operations at minimal cost. He is regarded by his peers as a thorough, pragmatic and trustworthy expert in delivering sustainable and profitable business results.
Mr. Luong Peter Chuong is a multidisciplinary expert with extensive experience in strategic management, business development, and international startups. He currently serves as a Board Member and Investment Strategy Lead at Viet Uc Seafood Group, where he plays a key role in planning growth strategies, expanding into international markets, and strengthening the Group’s competitive capabilities.
Before joining Viet Uc, Mr. Peter accumulated over a decade of leadership experience in technology and investment companies across Australia, Singapore, and Vietnam. He was a managing partner at 3 Comma Capital Group – an investment firm focused on high-potential startup models – and also served as a board member for Australian companies such as Roll’d Australia and VTPA Group.
Throughout his career, Mr. Peter has demonstrated outstanding ability in team building, executing effective market expansion campaigns, and fostering regional investment networks. His international strategic mindset, adaptive leadership style, and constant drive for innovation have defined Mr. Lương Peter Chuong’s leadership, making a strong contribution to Viet Uc’s journey toward regional and global prominence.
Mr. Ton That De is currently a core member of the Board of Directors and General Director of Viet Uc Seafood Group. He leads the Viet Uc’s development and growth strategy through a closed shrimp value chain model and an expansion orientation to the international market.
Under his leadership, Viet Uc has continuously brought quality products and services to both farmers and consumers, with the vision of making Vietnam a global leader in clean and sustainable shrimp production.
With more than 25 years of experience in operations and strategy development in the fields of fast-moving consumer goods (FMCG), food & beverage (F&B) and agriculture, Mr. Ton That De has held many senior leadership positions at multinational and domestic corporations such as Unilever, Coca-Cola, Masan Consumer and Nova Consumer Group. In particular, he plays a key role in building business strategies, designing breakthrough models – typically the “Farm-to-Table” model, perfecting and developing the organizational structure, and optimizing operations. His leadership style is always associated with sustainable growth in revenue and profit, while creating real value for customers and contributing to the long-term success of the business.
Mr. Luong Thanh Van is the quintessential self-made entrepreneur — a visionary with relentless ambition, sharp strategic thinking, and a pioneering spirit. Starting from zero in Australia, he launched his first business in the garment industry and later pivoted successfully into photo development, eventually becoming one of the most successful Vietnamese entrepreneurs abroad. His landmark acquisition of Kodak’s operations — including a 6,000-agent network and $50 million in annual revenue — stands as a testament to his ability to turn bold visions into reality.
Despite his overseas success, Mr. Van always harbored a deep desire to return to Vietnam and contribute to its growth. In the early 2000s, he took on a new challenge in a completely unfamiliar field — aquaculture — and founded Viet Uc Seafood Group. Driven by the mission to elevate Vietnam’s shrimp industry to global standards, he brought with him world-class knowledge, experience, and unwavering determination.
He spearheaded the establishment of Vietnam’s first and only broodstock shrimp breeding program, enabling the country to produce high-quality shrimp seed stock, reduce dependence on imports, and enhance national competitiveness. His philosophy is clear: in any sector he enters, the goal is not just to lead the market, but to create value that elevates the entire industry.
With the mindset that “Only when farmers succeed, do we truly succeed,” he has heavily invested in research, technology, and a fully integrated shrimp value chain. Under his leadership, Viet Uc has grown to become a dominant force in shrimp seed production and a pioneer in sustainable aquaculture — edging Vietnam closer to becoming a top global shrimp exporter.
As Chairman, Van has guided Viet Uc Seafood Corporation to build a comprehensive aquaculture ecosystem with nearly 2,000 employees, holding over 30% market share in shrimp seed. The group continues to pursue its mission of “Elevating Vietnamese Shrimp” — pushing the industry forward through technology, innovation, and sustainable development.
More than just a business leader, Mr. Luong Thanh Van is a passionate industry steward, driven by the belief that:
“Vietnam’s shrimp industry can master technology, elevate its position, and leave a mark on the global aquaculture map.”
Mr. Ma Tung is currently a core member of the Board of Directors, and Senior Vice President of Research and Development, Technology & Quality of Viet Uc Seafood Group.
He is a passionate technology leader who always takes logical thinking and passion for discovery as a compass to realize vision and lead all technological innovations. He has the ability to turn leading technologies into proprietary assets that bring value to the business, contributing significantly to the journey of making Viet Uc a pioneer in the shrimp industry.
With more than 30 years of experience in the field of engineering and production at many domestic and foreign corporations, Mr. Ma Tung has made outstanding contributions in technology transfer, building operating systems, and developing organizational capacity. He made a special mark at Viet Uc Group as a pioneer in researching and applying advanced water treatment technologies, standardizing shrimp seed production processes, and implementing the first shrimp parent selection program in Vietnam – the foundation that helped Viet Uc lead the high-tech shrimp seed industry.
Dr Nigel Preston is a leading expert in aquaculture with over 25 years of international experience. He has held roles as Director General of WorldFish and ISC Chair of the Fish Research Program (FISH CRP), as well as numerous leadership positions at CSIRO – Australia.
With over 90 publications, he has made extensive contributions to the ecology, genetics, nutrition and environmental management of aquatic species. He is currently a Visiting Professor at the University of Queensland and holds a PhD in Marine Biology from the University of Sydney.
Mr. Le Quang Minh is currently a member of the Board of Directors and Deputy General Director of Finance and Information Technology of Viet Uc Seafood Group.
He is a veteran financial and auditing expert with more than 20 years of experience in domestic and multinational corporations, Big 4 – including Deloitte and especially the position of Partner at Ernst & Young Vietnam – the pinnacle of the auditing industry with sharp strategic thinking.
Having held many senior management roles, he has directly built and operated internal control systems, planned financial systems, advised on IPOs and mobilized international capital for many large enterprises such as Khang Dien, Hung Thinh, and companies listed on HOSE.
