Slide background

We have moved !
The items are moved, but everything needs to find a new spot. Orders are shipped as quickly as possible, but unfortunately it may take a little longer than you are used to from us.

The store is closed for the time being. (collection is possible)

Our apologies for the inconvenience this causes.

CO2 toebehoren

Adding CO2 to the aquarium can be complicated, but with the right accessories it becomes relatively easy. Also when you need to attach multiple aquariums to one system, you can find everything you need here.

Active filters

  • Brand: Azaqua
  • CO2 bottle refillable
    Bottle content: 500 gram 2 kg 6 kg
    €42.90

    With these FULL, refillable CO2 bottles you have an affordable and sustainable solution for supplying the aquarium with CO2. The CO2 bottles are equipped with a handy carrying handle.

    Choose from:
    500 grams, 2, 6 or 10 kg

    Bottle is delivered full

  • Have the CO2 bottle filled
    Type: Swap Refill own bottle
    Bottle content: 500 gram 2 kg 6 kg 10 kg
    €7.90

    Want to fill your empty CO2 bottle? This is possible with our CO2 bottle exchange system! Filling of 500 grams, 2, 6 or 10 kg.

    Complete this form , print it out and add it to the empty bottle.

  • CO2 pressure hose per meter
    Color: Black clear-transparant
    €1.90

    Sturdy, pressure-resistant CO2 hose. Pressure resistant up to 13 bar.

    Per meter
    available in transparent-clear, black or white-transparent
    diameter: 4/6mm

  • CO2 hose (flexible) per m
    €1.90

    Flexible, white-transparent CO2 hose. Impermeable and pressure resistant. For connecting the CO2 bubble counter and CO2 diffuser to the aquarium's CO2 system.

    Price per meter
    Enter the desired number of meters as quantity.

    diameter: 4/6mm

  • CO2 Solenoid Valve
    €34.90

    With this CO2 solenoid valve it is possible to shut off the CO2 supply at night. A reliable solenoid valve that can easily be plugged into a timer. This prevents CO2 wastage, as an aquarium does not need CO2 at night.

  • CO2 coupling 90
    €5.90

    With this handy coupling, the CO2 hose can be guided neatly in a 90-degree angle, without there being any chance of the hose kinking.

  • CO2 coupling Y
    €6.90

    With this handy Y coupling, CO2 hose can be divided from one CO2 source to two hoses. For example, to supply two aquariums with CO2 with one CO2 bottle.

  • CO2 speed limiter
    €9.90

    A handy limiter to regulate the flow of CO2. Place this between the CO2 pipe and the amount of CO2 can be adjusted with the adjusting screw. Extremely suitable for distributing CO2 where there are multiple branches.

  • Suction cup transparent normal
    €0.50

    Transparent suction cup for connecting glass Lily pipes, CO2 diffusers, CO2 checkers, etc.

    Diameter: 39mm
    Opening: 8mm

  • Transparent suction cup nano
    €0.50

    Transparent suction cup nano with 'clip' for connecting glass products, hose or accessories, for example.

    Diameter: 28mm
    Clip: 5-10mm

  • Transparent suction cup O
    Diameter: 7mm 16mm 22mm 9mm
    €0.75

    Transparent suction cup with 'O' for connecting glass products, hose or accessories, for example.

    Available in different formats:
    O: 7mm
    O: 9mm
    O: 12mm
    O: 16mm
    O: 22mm

  • Transparent suction cup 6mm (block)
    €0.50

    Transparent suction cup with 6mm opening for connecting glass products, CO2 hose or accessories, for example.

    Diameter: 25mm
    Opening: 6mm

  • Transparent Suction Cup Clip
    Diameter: 5mm 6mm 12mm 16mm 19mm
    €0.75

    Transparent suction cup Clip for connecting glass products, hose or accessories, for example.

    Available in different sizes.

  • CO2 U pipe
    Size: S M L
    €4.90

    A CO2 U-PIPE prevents the CO2 hose from kinking when it is hung over the edge of the aquarium.

    Available in 3 sizes:
    S, M or L

  • CO2 J pipe
    €5.90

    A CO2 J-PIPE prevents the CO2 hose from kinking when it is hung over the aquarium edge. The CO2 diffuser can therefore be placed in the aquarium in a stylish way.

  • CO2 distributor
    Type: 2-weg 3-weg 4-way 5-way 6-way
    €34.90

    With this CO2 distributor it is possible to supply multiple aquariums with CO2 simultaneously with one CO2 system. Multiple diffusers can also be connected to one aquarium.

    Choose from:
    2-way
    3-way
    4-way
    5-way
    6-way

  • Open-end wrench for CO2 pressure regulator
    €5.90

    Handy open-end wrench for tightening or loosening the CO2 pressure regulator on a CO2 bottle. Equipped with a handy bend for more convenience and an eye to hang the wrench in the aquarium furniture.

    length: 175mm
    For nut: 30mm

  • CO2 hose set
    €9.90

    Hose set to connect the CO2 system.

    inclusive:
    1 m CO2 pressure hose
    2m flexible CO2 hose
    1 ADA check valve
    3x suction cup nano

  • Seal ring for CO2 pressure regulator
    €2.90
    Seal ring for CO2 pressure regulator. White Teflon ring for between the pressure regulator and the CO2 bottle to prevent CO2 from escaping.


    Diameter: 18mm
    Opening: 12mm
  • Replacement membrane for stainless steel CO2...
    Diameter: 15mm 25mm
    €5.90

    Replacement membrane for stainless steel CO2 diffuser. Select the desired size.

    Available in: 15 or 25mm

  • Replacement membrane for inline CO2 atomizer
    Diameter: 12/16 mm 16/22 mm
    €5.90

    Replacement membrane for inline CO2 atomizer. Select the desired size.

    Available in: 15 or 25mm

  • CO2 disposable bottle
    Content: 500 gram 1100 gram
    €25.90

    Benefit from the convenience of a disposable CO2 bottle. The CO2 bottle is filled with 500 or 1100 grams of CO2 and is immediately ready for use.

    Contents: 500 or 1100 grams

    Price per piece

  • CO2 pressure regulator for disposable bottles
    €37.90
    A CO2 pressure regulator is required to reduce the pressure in the CO2 bottle (approx. 50-60 bar) to a suitable working pressure (approx. 1-2 bar). This CO2 pressure regulator is suitable for use in combination with disposable CO2 bottles with a M10x1 thread. With the preset working pressure of 2 bar and only one rotary knob, it is easy to operate.

    (not compatible with Dennerle disposable bottles)
  • Carrying handle for refillable CO2 bottle
    €13.90
    Carrying handle for refillable CO2 bottle