Aquaculture Solutions and Services

Our SOLVOX® product line offers a wide range of oxygen dissolution and distribution systems for fresh and salt - and brackish water models.

  • SOLVOX®A is a low-pressure oxygen dissolver for salt and brackish water that can be used in any fish tank. This patented, flexible dissolving unit is usually integrated within the pipe installation in order to oxygenate the entire water flow entering the tank. For larger tanks or raceways, installing more than one SOLVOX A unit will ensure even distribution of the dissolved oxygen throughout the entire tank.

    SOLVOX A is easy to install and combines high oxygenation efficiency with low energy consumption. It further adds to the health of the fish, when displacing nitrogen with oxygen.


    Optimised hydrodynamics can be produced in circular tanks by combining SOLVOX A with a SOLVOX Stream device.

    Advantages SOLVOX A

    • Low energy consumption
    • High oxygen dissolution efficiency
    • Low investment cost
    • Flexible oxygen dissolver
    • Simple to install
    • No need for maintenance
    • Easy retrofitting in existing tanks
    • Cylinder and bulk supply schemes to suit individual needs



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  • SOLVOX®B is a flexible, low-cost oxygenation solution that doesn’t require any power source besides the oxygen tank pressure, making it ideal for emergency oxygenationsituations. The SOLVOX B is a high quality perforated hose always at the ready to produce oxygen. When the oxygen supply is turned on, the pores of the diffuser hose open, producing small bubbles, i.e. oxygen. If no more oxygen is required, the oxygen is cut off and the pores close.


    Advantages of SOLVOX B

    • Low investment cost
    • No external energy supply required
    • High flexibility of oxygen transfer
    • Fast and easy installation
    • Easy adaptation to any tank shape
    • UV-resistant hose material for long service life
    • Cylinder and bulk supply schemes to suit individual needs
    • Stripping (removal) of unwanted gases like nitrogen
    • Oxygen supply during live fish transport


    SOLVOX CD is a high-performance, aluminium-housed oxygen dissolving solution. It is the ideal way to provide additional oxygenation to individual tanks or raceways and to supply oxygen in emergencies.

    SOLVOX CD ceramic dissolvers produce gas in the form of micro-bubbles that start dissolving at low pressure and can also help produce an aeration/stripping effect for unwanted gases.

    Advantages of SOLVOX CD

    • No external energy supply required
    • Ideal for emergency and peak-demand oxygenation
    • Reduction in stress and mortality during live fish transport
    • Stripping of unwanted gases
    • Cylinder and bulk supply schemes to suit individual needs
    • Flexible handling – SOLVOX CD simply placed on tank base (no support required)

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  • SOLVOX® C is a pressure dissolver for fresh and sea water. Designed to increase the concentration of oxygen in water, it is made from corrosion-resistant glass-fibre-reinforced plastic (GRP) with high-quality stainless steel fittings. Various SOLVOX® C design innovations achieve transfer efficiency rates close to 100%.

    As water and gas enter the SOLVOX® C cone from the top, the water jet forces the water to mix intensively with the oxygen bubbles. As the cone widens, the velocity is reduced. Small gas bubbles that are not yet fully dissolved rise in the cone against the downward water flow, so only water free from gas bubbles leaves the cone at the bottom. Since the SOLVOX® C cone is operated at elevated pressure, the dissolved oxygen concentration can be increased significantly above normal saturation levels.

    Highlights of SOLVOX C

    • Oxygen transfer efficiency rates close to 100%
    • Ability to increase oxygen saturation well above the normal level
    • Reliable design
    • Cylinder and bulk supply schemes to suit individual needs

    SOLVOX® C auxiliaries

    Auxiliary equipment is available to additionally boost the efficiency of SOLVOX® C and reduce energy consumption even further. These include the SOLVOX® CV venturi nozzle to increase oxygen-dosing capacity by up to 50%. The venturi nozzle recirculates undissolved oxygen that collects in the top of the cone.

    Highlights of SOLVOX® CV

    • Oxygen-dosing capacity increased by up to 50%
    • No increase in water flow rate or energy consumption required
    • Can be installed during live operations
    • Energy consumption per kg of oxygen dissolved even lower

    SOLVOX® Mix is a specially adapted nozzle unit for use in combination with SOLVOX® C. It enables pressurised, highly oxygenated water from SOLVOX® C to be returned to a water flow at a lower pressure – without reducing efficiency and without the risk of degassing. The unit is specially adapted for each project and installation and can be installed individually for each tank or in the facility’s main water supply to provide basic oxygenation.

    Highlights of SOLVOX® Mix

    • Ideal complement for a complete SOLVOX® C installation
    • No risk of degassing
    • Greater oxygenation efficiency overall

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  • SOLVOX® DropIn is a new, easy-to-deploy and highly efficient solution for the oxygenationof sea cages. It is suited to both continuous oxygenation schemes and short-term applications such as de-licing or medical treatments.

    This innovative, patent-pending oxygenation solution comprises a submersible pump plus a patented oxygen dissolver and distribution system featuring a venturi nozzle. Using a small crane, SOLVOX DropIn is easily lowered into the water to the desired depth. It works by sucking water into the lower part of the dropped-in unit and mixing it with oxygen.


    SOLVOX DropIn is designed for easy handling and operation, making it ideal for de-licing treatments in closed sea cages. It eliminates the hassle involved in dragging perforated hoses across the cage floor, also increasing oxygenation efficiency thanks to its innovative dissolver and distribution system.

    Advantages SOLVOX DropIn

    • Compact design for ease of handling
    • Reduced resource and installation requirements
    • Time savings with simple drop-in deployment
    • Optimised oxygenation with improved residence and distribution of microbubbles
    • Calmer behaviour to be observed among fish during de-licing treatment

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  • SOLVOX® Stream is a flow distributor that creates a better tank environment to improve the well-being of fish. It optimises hydrodynamic conditions in the tank by ensuring that oxygenated water is homogeneously distributed throughout the tank. In addition, it aligns circulation speed with the fish species and size. 

    SOLVOX® Stream is designed for use in combination with oxygenation equipment such as SOLVOX® A to provide an optimum, all-inclusive oxygenation and oxygen distribution solution.

    SOLVOX® Stream works by creating an even pushing force in the water column in the tank, also providing effective self-cleaning of waste such as excess feed and excrement.

    SOLVOX® Stream is a customised product that can be adapted for required water flow rates ranging from 50 l/min to 20,000 l/min. For larger water flows, two or more inlets per tank are recommended, ensuring greater operating flexibility. It comes with a built-in water flow indicator so you always know how much water is going into the tank.

    Highlights of SOLVOX® Stream

    • Optimal tank hydraulics and good oxygen exploitation
    • Even distribution of fish throughout the entire tank
    • Water flow indicatorRevolving turret for correct flow direction and speed
    • Easy to install and maintain
    • Specially designed for each individual tank
    • Can be used in both freshwater and seawater installation
    • sEffectively removes waste and provides a good level of self-cleaning

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  • SOLVOX® C is a pressure dissolver for fresh and sea water. Designed to increase the concentration of oxygen in water, it is made from corrosion-resistant glass-fibre-reinforced plastic (GRP) with high-quality stainless steel fittings. Various SOLVOX® C design innovations achieve transfer efficiency rates close to 100%.

    As water and gas enter the SOLVOX® C cone from the top, the water jet forces the water to mix intensively with the oxygen bubbles. As the cone widens, the velocity is reduced. Small gas bubbles that are not yet fully dissolved rise in the cone against the downward water flow, so only water free from gas bubbles leaves the cone at the bottom. Since the SOLVOX® C cone is operated at elevated pressure, the dissolved oxygen concentration can be increased significantly above normal saturation levels.

    Highlights of SOLVOX C

    • Oxygen transfer efficiency rates close to 100%
    • Ability to increase oxygen saturation well above the normal level
    • Reliable design
    • Cylinder and bulk supply schemes to suit individual needs

    SOLVOX® C auxiliaries

    Auxiliary equipment is available to additionally boost the efficiency of SOLVOX® C and reduce energy consumption even further. These include the SOLVOX® CV venturi nozzle to increase oxygen-dosing capacity by up to 50%. The venturi nozzle recirculates undissolved oxygen that collects in the top of the cone.

    Highlights of SOLVOX® CV

    • Oxygen-dosing capacity increased by up to 50%
    • No increase in water flow rate or energy consumption required
    • Can be installed during live operations
    • Energy consumption per kg of oxygen dissolved even lower

    SOLVOX® Mix is a specially adapted nozzle unit for use in combination with SOLVOX® C. It enables pressurised, highly oxygenated water from SOLVOX® C to be returned to a water flow at a lower pressure – without reducing efficiency and without the risk of degassing. The unit is specially adapted for each project and installation and can be installed individually for each tank or in the facility’s main water supply to provide basic oxygenation.

    Highlights of SOLVOX® Mix

    • Ideal complement for a complete SOLVOX® C installation
    • No risk of degassing
    • Greater oxygenation efficiency overall

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  • SOLVOX®B is a flexible, low-cost oxygenation solution that doesn’t require any power source besides the oxygen tank pressure, making it ideal for emergency oxygenationsituations. The SOLVOX B is a high quality perforated hose always at the ready to produce oxygen. When the oxygen supply is turned on, the pores of the diffuser hose open, producing small bubbles, i.e. oxygen. If no more oxygen is required, the oxygen is cut off and the pores close.


    Advantages of SOLVOX B

    • Low investment cost
    • No external energy supply required
    • High flexibility of oxygen transfer
    • Fast and easy installation
    • Easy adaptation to any tank shape
    • UV-resistant hose material for long service life
    • Cylinder and bulk supply schemes to suit individual needs
    • Stripping (removal) of unwanted gases like nitrogen
    • Oxygen supply during live fish transport


    SOLVOX CD is a high-performance, aluminium-housed oxygen dissolving solution. It is the ideal way to provide additional oxygenation to individual tanks or raceways and to supply oxygen in emergencies.

    SOLVOX CD ceramic dissolvers produce gas in the form of micro-bubbles that start dissolving at low pressure and can also help produce an aeration/stripping effect for unwanted gases.

    Advantages of SOLVOX CD

    • No external energy supply required
    • Ideal for emergency and peak-demand oxygenation
    • Reduction in stress and mortality during live fish transport
    • Stripping of unwanted gases
    • Cylinder and bulk supply schemes to suit individual needs
    • Flexible handling – SOLVOX CD simply placed on tank base (no support required)

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  • SOLVOX® F is an oxygen flow control cabinet that ensures constant oxygen levels in fish tanks by providing different amounts of oxygen at different times. It allows you to flexibly adapt the oxygen flow to variations in stocking density, feeding regime, temperature, etc. SOLVOX® F dosing technology thus enables you to smoothly increase stock density, while ensuring an optimal feed conversion ratio and the highest possible survival rates under optimum breeding conditions.

    To ensure security of supply, it incorporates an emergency oxygenation function. In the event of a power outage, solenoid valves open automatically and release oxygen to the emergency lines.

    Highlights of SOLVOX® F

    • Ease of use
    • Oxygen flow rates individually pre-set for different conditions
    • Modular design for easy expansion
    • Integrated emergency oxygenation function

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  • SOLVOX® OxyStream is a low-pressure oxygenation system for sea water, brackish water and fresh water tanks.

    The system is a patented all-in-one product, which oxygenates the water and evenly distributes it around the fish tank using an adjustable flow regime. This regime aligns circulation speed with the fish species and size. SOLVOX OxyStream includes a water flow indicator, which gives you a quantitative overview of the water flow into each tank.

    The microbubbles created by SOLVOX OxyStream not only allow for a highly efficient oxygen dissolution but also reduce the concentration of dissolved nitrogen and the total gas pressure of the water. This often eliminates the need for external degassing units.

    SOLVOX OxyStream achieves maximum effect beginning at about 15% salinity and requires a pressure of only 0.05–0.2 bar to oxygenate the water, strip nitrogen and create optimal tank hydrodynamics for fish production. The low-pressure delivery mechanism makes the system very energy-efficient.

    In fresh water installations, SOLVOX OxyStream can be combined with SOLVOX C to meet even the highest oxygenation demands.


    Highlights of SOLVOX® OxyStream

    • High oxygenation efficiency
    • Low power consumption
    • Low-pressure oxygenation method
    • Optimised tank hydrodynamics
    • Reduced nitrogen saturation
    • Easy to install
    • No need for maintenance
    • Cylinder and bulk supply schemes to suit individual needs

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