Inlet Water

Inlet water treatment is a critical step in land-based fish farming. It involves filtering and cleaning the water coming in to the fish farm, to create an optimal environment for fish growth and health. Techniques such as microfiltration, UV disinfection, and ozone systems are commonly used to remove impurities and pathogens from the water, ensuring its quality and promoting successful fish farming operations.


Hard water contains high levels of minerals such as calcium and magnesium, which can negatively impact the health and growth of fish. By utilizing microfiltration systems like drum filters or disc filters, the hard water can be effectively treated and purified. These filters are designed to remove debris, sand, and other imperfections from the water, ensuring a clean and optimal environment for fish to thrive.


HydroTech filters have been widely used in aquaculture for over 25 years. They provide durable and user-friendly filtration solutions to fish farms worldwide. With their robust construction and minimal moving parts, HydroTech filters ensure long-term reliability and low maintenance costs. They offer both Drumfilter and Discfilter options, and our team at GroAqua will assist you in selecting the best filter based on your specific needs and flow rates.

NP Innovation

NP Innovation specializes in the development, production, and sale of pressureless filter systems, specifically drum and disc filters. These filters are known for their exceptional functionality, design, and longevity, making them a top choice in the market. With their reliable performance, low maintenance requirements, and versatility, NP Innovation filters are widely used in industrial facilities for the filtration of inlet water and wastewater.

UV Disinfection

With the use of UV systems, the water is subjected to ultraviolet light that effectively disinfects and eliminates harmful microorganisms before it enters the fish farm. The UV light targets bacteria, viruses, and parasites by damaging their DNA, rendering them inactive and unable to cause harm to the fish. By incorporating UV filters into the water treatment process, land-based fish farms can ensure that the water is free from pathogens, providing a healthier and safer environment for the fish. 


Wedeco, a subsidiary of Xylem, is one of the largest manufacturers of ozone and UV systems globally. Their UV disinfection solutions, approved by the Norwegian Veterinary Institute, ensure the health and safety of fish by preventing harmful organisms. With high UV-C output and efficient lamps, Wedeco UV systems offer real-time monitoring and precise control for optimal performance. Trusted worldwide, Wedeco UV systems are installed in various industries, including fish farms and sewage treatment plants.

Ozone Generation

Ozone systems are another important component in inlet water treatment for land-based fish farming. Ozone, a powerful oxidizing agent, is used to remove impurities and disinfect the water, creating a healthier environment for fish. By introducing ozone into the water treatment process, harmful bacteria, viruses, and other microorganisms can be effectively eliminated. Ozone reacts with organic matter and contaminants in the water, breaking them down and rendering them harmless.


Wedeco’s ozone systems provide compact and plug-and-play equipment for aquaculture applications. Along with the ozone generator, their systems come with control cabinets, dosage control based on water flow, a pump-venturi system, and oxygen supply if necessary. We are proud to offer a diverse selection of Wedeco Ozone systems.

See More on the Webshop

To explore our full range of products and services, we encourage you to visit our webshop. Our webshop offers a wide range of products and services for aquaculture and fish farming, including aeration systems, fish handling equipment, filtration systems, feeders, and monitoring tools. Browse our selection to find the perfect fit for your operation.

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Mark Farquhar

Sales (UK & Ireland)


Lindsay McCrae

Sales (UK & Ireland)