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Aqua Medic Solenoid Valve

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Aqua Medic Solenoid Valve

The Aqua Medic Solenoid Valve is an electronic solenoid valve for CO2, and has a high quality nickel plated brass body with a maximum operating pressure of 4 bar / 60 psi, pressure fittings for flexible hose and can be connected to all CO2 units. The solenoid coil consumes only 2.5W preventing overheating. It operates using a power source of 220V.

Use a digital timer to start the CO2 injection 2 hours prior to switching the lights on. Stop the CO2 injection at the same time as the lights switch off. This will prevent high (above 30 ppm) CO2 levels during the night which can harm the fish and shrimp. Without the use of a solenoid valve it is practically impossible to maintain properly high CO2 levels during the day - when plants need the carbon for their photosynthesis. Solenoid Valves also help us conserve the CO2 by switching it off during the night.


  • Function: 2/2 directions, non-current carrying connection
  • Material: brass, chrome plated
  • Nominal width. 2 mm
  • Operating pressure: 0-4 bar, 0-60 psi
  • Medium: CO2 gas
  • Connection: flexible hose 4/6 mm.
  • Voltage: 220 V, 50 Hz
  • Power consumption: 2.5 Watts
  • Operating factor: 100%


The solenoid valve is pre mounted and tested. It must only be integrated into the CO2 system. On the body of the valve, you find an arrow, that indicates the direction of the flow. First the hose is mounted on the inlet:

Unscrew the knurled nut from the CO2 connection (4)

Slide the knurled nut over the flexible pressure tube (4/6 mm)

Slide the end of the tube over the nipple (4)

Screw the knurled nut onto the nipple and tighten.

Mount the other end of the flexible tube onto the pressure outlet of the pressure regulator (pressure reducer) and tighten.

Now a tube is mounted in the same way on the outlet. Here, you do not need to use a pressure tube, you may use ordinary pvc-tube (4/6 mm)

The free end is connected to the bubble counter inlet or the the CO2 inlet.

If you use a pressure regulator with adjustable operating pressure, set it to 1-1.5 bar (14-20 psi)


Always use a non return valve (check valve) between the aquarium and the solenoid valve. It prevents water from flowing back from the aquarium into the regulator and the CO2 bottle and causing damage.


The CO2 consumption during the day (light phase) is determined primarily by the plants. In the night (dark phase) the plants exrete CO2 gas. So it is not necessary to provide CO2 during the night time, it may even be harmful to fish and shrimp. The solenoid valve can be linked to a timer to meet these specific requirements. Always turn the CO2 gas injection on at least 2 hours before the lights to ensure the proper levels at the beginning of the light phase. CO2 is dissolved relatively slowly into the water. The valve is then switched off together with the light.

More Information
NameAqua Medic Solenoid Valve
Weight (kg)0.400000
ManufacturerAqua Medic

Our main shipping provider - GLS is only delivering our packages up until a certain weight. In some extreme cases - involving shipping of big aquariums, furniture - we will calculate a custom shipping cost, after receiving your order. We will only ship the purchased products after you have confirmed this shipping cost with us.
Please be informed, we charge an extra 10 EUR / aquarium on all aquarium orders for special packaging and care within the shipping fee.

Our goal is to deliver the plants as quickly as possible to your address, so we are making regular (two times per week) orders to our manufacturers and will send you the fresh plants with GLS as soon as they arrive to us. We also have a uniquely high stock, with hundreds of plants. Please read our terms and conditions.

We would like to inform you that according to the EU regulations we are not allowed to ship live animals or dangerous goods (such as CO2 bottles in example) through our delivery partners. Please note that these can only be picked up at our store. The list of the dangerous goods on sale by Green Aqua can be found here.

Please protect your purchase by always inspecting the package right after delivery. In case of visible damages on the exterior of the package you will need to sign a written damage form IN THE PRESENCE of the delivery agent! We can only guarantee replacement or resending of any goods if a written damage form or claims form is filled at the time of the delivery! With seamlessly undamaged packages on the exterior, you have 7 days to report any missing or damaged goods from the interior of the package.

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