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Green Aqua CO2 system with CO2 reactor (12/16 mm)

In stock
Grouped product items
Product Name Qty
Oxyturbo CO2 Pressure Regulator with solenoid valve, fine needle valve
Chihiros CO2 Pressure Regulator with fine needle valve
Oxyturbo Major 2 CO2 Pressure Regulator with fine needle valve
Green Aqua CO2 solenoid valve
CO2Art Inline CO2 Atomizer (12/16 mm)
AquaCare 50 External CO2 Reactor 12/16 (13 mm)
AquaCare 50 Bypass for CO2 reactor
Chihiros Drop Checker
Green Aqua CO2 indicator reagent 10 ml
€0.44 / 1 ml
GreenWorks CO2 Pressure Resistance Tube (for meter)
€2.77 / 1 m
JBL ProFlora CO2 Taifun CountSafe bubble counter with check valve
Green Aqua Bubble Counter Fluid - 30 ml (transparent)
€0.07 / 1 ml
ADA CO2 Check Valve Clear

IMPORTANT: The set does not contain the CO2 canister by default. You need to check it to add that to your order. A pressurized CO2 bottle is required. Unfortunatelly CO2 cylinders not allowed to ship by the law. This is only available with in-store pick up.


  • Make sure the rubber O-ring is in its place inside the connection nut of the regulator.
  • Fix the connection nut of the regulator on the thread of the CO2 bottle (hand tight).
  • Rotate and adjust the pressure reducer to the desired angle and secure the connection nut with a spanner (included). Make sure to tighten it firmly - CO2 gas can escape thus emptying the cannister. Also note that if you fasten it too firmly the O-ring can be damaged and will need to be replaced when changing the empty cannister later.
  • Unscrew the nut of the corresponding 4/6 mm CO2 hose connector and place it on the hose.
  • Connect the 4/6 mm hose to the connector (4) and fasten the nut manually.
  • Close the needle valve (clockwise)
  • Close the black colored main valve (counter-clockwise)
  • Open the CO2 canister tap. The input indicator will show 50-70 bar.
  • Open the black colored main valve.
  • Open the needle valve until bubbles will start appearing in the bubble counter.
  • Adjust the black colored main valve until output pressure is about 1.5-2 bar.
  • Adjust the needle valve to get the desired bubble count.


Never separate a stationary pressure regulator form a CO2 bottle, if it is under pressure. Close the bottle valve, and open the needle valve to release the gas before you separate both units.

CO2 bottles can only be used in upright (vertical) position. Do not incline or use it horizontally, liquid CO2 might damage the pressure regulator.

More Information
NameGreen Aqua CO2 system with CO2 reactor (12/16 mm)
Hose Size12/16 (13 mm)

Our main shipping provider - GLS is only delivering our packages up until a certain weight. In some extreme cases - involving the shipping of big aquariums and 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 partners 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 the replacement or resending of any goods if a written damage form or claims form is filled out at the delivery time! With seamlessly undamaged packages on the exterior, you have seven days to report any missing or damaged goods from the interior of the package.

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