Linn is the European market-leading manufacturer of water-aeration/oxygen enrichment equipment for fish farms and aquaculture. Enjoy the benefits of Linn’s experience: Innovative products with German-made quality. Linn’s customers include professional fish farmers, fishing lakes, golf courses, aquaculture companies, Parks and Leisure facilities and thousands of lake and pond owners across the world.
Apart from a naturally balanced waterbody the oxygen content of water is rarely enough to support all forms of aquatic life. This is especially true of ponds with little natural exchange of water. Impacts of low oxygen levels on fish health and growth rates are often hidden from view. Pollution of the water by phosphates, and dead plant material leads to over-enrichment of the water. We supply aeration equipment for commercial aquaculture operations, golf courses, amenities, Parks and Leisure operators as well as the enthusiastic hobbyist. We also offer surface aerator solutions, such as fountain aerators, these are a great option for fish farmers looking for a more aesthetic option for their lake or pond.
We provide commercial aerators for effective treatment of the pollutants found in lakes, ponds and all forms of processing and production units. Our waste water aeration system Turbo-Jet works under the water surface – this is necessary in waste water treatment in order to avoid unwanted odour formation. The system is suitable for equipping sewage treatment plants with a connected load of up to 10,000 population equivalents (P.E.).
Oxygen enrichment solutions to help you achieve a healthy fish farm, lake or pond. Increasing demands of salmonid fish quality, higher stocking densities, declining water supply and the use of high quality, expensive feed necessitate more effective oxygen transfer methods than surface aerators alone. With surface aeration, it is only possible to achieve a maximum of 100 % saturation. Oxygen enrichment can lead to higher weight gains and more efficient use of expensive feed.
Fish-farms can use water pumps all over the farm. Pond complexes also need pumps, to circulate water. To pump ponds out, top them up or return water to filters, low pressure pumps with large diameter outlets are ideal. Detailed specifications can be found on the following pages. The Linn company offers specialised pumps, for all applications, giving great performance with low energy consumption. Great for moving large volumes of water against low head pressures such as flooding events
The trouble-free, and stress-free transporting of live fish requires specialist equipment. This includes the fish transport tanks themselves, and also the oxygen or air supply equipment. Selection of the size of transport tank depends on the quantity of fish to be transported, the type of fish, the water temperature, and the duration of the journey.
Every fish farmer’s primary objective is to rear the fish as quickly and healthily as possible. For optimum growth, it is vital that the fish are fed continuously and regularly. These factors are important in determining water quality and feed conversion rates. It is important that the fish are fed daily. This can be done easily, and reliably, with pendulum feeders, or feeders with vibrator motors.
In order to keep safe the fish stock and the investment from the interruption of life support, it makes sense to install a monitoring system. With this concept in mind, LINN Germany has developed a comprehensive range of monitoring and control systems. Commonly, simple alarm systems are installed which are triggered by power cuts, and linked to emergency power generators. You deserve and need much more!