CO2 products

Adding CO2 to the aquarium will help to better grow aquariumplants. Next to light, plants need sufficient levels of CO2 for photosyntheses. We offer a wide range of CO2 products for adding CO2 to your aquarium. It will help lower the pH levels of the water and is practicly indispensable in a densely planted aquarium.

Subcategories

  • CO2 systems

    A good CO2 system and adding free available CO2 to the aquarium, besides a good fertilization, plays an important role to the growth of the plants in the aquarium. By adding CO2 to the aquarium the pH of the water lowers and makes it acidic, just as most plants and fish love it.

  • CO2 Diffusers

    The small bubbles that a CO2 diffuser produces, have a large contact area. The CO2 diffusor ensures that the added CO2 in the optimal water to dissolve, and in the aquarium spreads. In an aquarium with CO2 fertilization to grow aquarium plants many times better!

  • CO2 bubble counters

    With the use of a CO2 bubble counter it is very easy to see and adjust the amount of CO2 that is dosed to the aquarium. Adding the right amount is essential for a healthy plant growth in the aquarium. Too much CO2 in the aquarium can be harmful for the fish. Too less is bad for plant growth.

  • CO2 checkers
    Having the right CO2 content is essential in a planted aquarium. Too much CO2 is harmful to fish, too little CO2 inhibits plant growth. The CO2 content in the aquarium can be measured with a CO2 Checker. The liquid in this Drop Checker changes color as the CO2 content changes.
  • 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

  • Azaqua CO2 Diffuser cup HQ
    Diameter: 15mm 20mm 30mm 40 50mm
    €24.90
    from €21.90

    With this CO2 diffuser, we have finally succeeded in delivering impressive quality at an affordable price. Fine bubbles are produced and evenly distributed across the membrane.

    Select the desired type for the size of your aquarium.

  • Azaqua CO2 bubble counter REGULAR
    €9.90

    This Azaqua CO2 bubble counter REGULAR is made of high quality glass and has an effective design. The CO2 bubbles pass through the water tank and are easy to count. Your CO2 system is extremely precise.

  • Azaqua CO2 Checker M
    €9.90

    Handy CO2 checker for every type of aquarium from small to large. For confirmation against the window pane, you can click on every desired place to be hung. As at several places in the aquarium, the CO2 content to be measured.

  • Compile a CO2 system
    €0.00

    Put together a complete CO2 set with all the necessities to add CO2 to the aquarium without worry. CO2 is the most important food source for aquarium plants. A good CO2 system is therefore a worthwhile investment for your aquarium.

  • Azaqua CO2 bubble counter...
    • New
    Azaqua CO2 bubble counter REGULAR HQ
    €13.90

    This Azaqua CO2 bubble counter REGULAR is made of high-quality glass and has an effective design. The CO2 bubbles pass through the water reservoir and are easy to count. This allows your CO2 system to be adjusted extremely precisely!

  • CO2 disposal system to build
    €0.00

    A Complete CO2 set to build all the necessities for stress-free, CO2 is added to the tank. CO2 is the most important source of nutrition for aquarium plants. A good CO2 system is a worthwhile investment for your aquarium.

  • Azaqua CO2 diffuser BOWL
    type: BOWL 30 BOWL 15
    €15.90

    The CO2 diffuser Bowl is elegant in form and dissolves CO2 into the aquarium water. The compact CO2 diffuser produces bubbles which CO2 is absorbed. Position the CO2 diffuser in the flow, so that the CO2 directly into the aquarium plants is provided.

    Available in 2 versions

  • Azaqua CO2 Checker Edge
    €11.90

    An exceptionally stylish solution! The CO2 checker Edge over the edge of the aquarium to be hung. The color of the CO2 indicator liquid at any time of the day, the CO2 content of the aquarium.

  • Azaqua CO2 Atomizer Ultra
    • New
    Azaqua CO2 Atomizer Ultra
    Type: Small Large
    €15.90
    Azaqua CO2 Atomizer Ultra dissolves CO2 in an extremely efficient way. The CO2 atomizer is small in size and easy to use.

    Available in Small or Large.
  • Azaqua CO2 Checker Globe
    Size: S L
    €12.90

    Handy CO2 checker for every type of aquarium from small to large. It can be hung at any desired location for attachment to the window. For example, the CO2 content can be measured at various places in the aquarium.

    Size S: 20mm
    Size L: 35mm

    NOTE: excluding CO2 check / indicator liquid

  • Tropica CO2 System Nano
    €98.20

    Tropica CO2 System Nano is a complete CO2 set with an elegant nano design. This allows CO2 to be simply and accurately added to a small aquarium.

  • Azaqua CO2 bubble counter SPIRAL
    €16.90

    This Azaqua bubble counter SPIRAL is made of high quality glass and looks extremely stylish. The CO2 bubbles run through the coil, allowing the number of bubbles of CO2 are very simple to count. Simple and stylish, CO2 dosing to the aquarium!

  • CO2Art CO2 Drop Checker Kit
    €14.99
    The CO2Art CO2 Drop Checker Kit contains a CO2 Drop Checker and CO2Art Drop Checker Solution (15ml). A complete combo to meet the needs of a professional aquascaper. The CO2 Drop Checker is made of glass, making it almost unnoticeable. The color of the liquid is clearly visible in the bulb and there is no longer any need to doubt the CO2 content.
  • CO2 Diffusor for mini-cup (HQ)
    Diameter: 10mm 15mm
    €24.90

    As a solution to adding CO2 to a tank is this small, the CO2 will discharge very very expensive. The fine bubbles will be produced and distributed evenly on the membrane.

  • Azaqua CO2 bubble counter METAL
    €14.90

    A CO2 bubble counter made of metal with integrated non-return valve. He can be used on the pressure reducer to be screwed.

  • ADA CO2 Advanced System - Forest
    €299.90
    ADA CO2 Advanced System - Forest contains everything to start adding CO2 to the planted aquarium. All necessary materials are included to get started right away!
  • ADA CO2 Forest Bottle
    €19.90

    This is a navullings CO2 cartridge for the ADA CO2 System 74-YA/ver.2. This CO2 refill is very easy to connect to the ADA CO2 System 74-YA/ver.2. The CO2 from this cartridge is lightly scented and is available in the scents "Amazonian, Malayan or African".

    Choice of: per piece or per set of 3

  • Azaqua CO2 bubble counter...
    • New
    Azaqua CO2 bubble counter METAL ver.2
    €14.90
    Azaqua CO2 bubble counter METAL ver.2 is a sturdy, robust CO2 bubble counter. The integrated non-return valve prevents water from flowing back. A 4/6mm CO2 hose can be connected to both sides of the bubble counter.
  • DOOA CO2 System Kit
    €269.90
    CO2 system kit contains all parts to provide an aquarium with CO2. Easy to connect and set up. With the included Metal Hook it can be hung on the edge of the aquarium.
  • Azaqua Inline CO2 atomizer
    Diameter: 12/16 mm 16/22 mm
    €24.90

    These inline CO2 atomizer ensures that CO2 is maximum is fixed in the aquarium. Not only are the bubbles very small (=large contact surface thanks to the ceramic membrane, but they also come in contact with, as much as possible water. Extremely efficient CO2 dissolve so!

    Available for 12/16 or 16/22 hose

  • ADA CO2 Drop Checker
    €49.90

    With this ADA CO2 Drop Checker is very easy to get the CO2 content of the aquarium water to review. By the glassware with the special liquid to fill, and against the pane of the glass to hang, can continue to be considered whether there is sufficient CO2 in the aquarium.

  • Azaqua Inline CO2 Atomizer...
    • New
    Azaqua Inline CO2 Atomizer premium
    Diameter: 12/16 mm 16/22 mm
    €25.90
    Azaqua Inline CO2 Atomizer premium is the all-in-one solution to efficiently dissolve CO2 in the aquarium.

    Available for 12/16 or 16/22 hose connection
  • Azaqua CO2 indicator liquid
    €5.90
    Indicator liquid for CO2 checkers. The liquid is immediately ready for use. Use the handy dropper bottle to fill CO2 checkers.
  • Chihiros Bubble Counter
    €14.90
    Chihiros Bubble Counter is a sturdy bubble counter with integrated non-return valve. A CO2 hose can be connected to both ends. Thanks to the integrated non-return valve, the water cannot flow back.