Need help?


Send us a message and we ll get back to you soon.

Need help?
*zo lang de voorraad strekt

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

  • Product type:: CO2 bubble counter
  • Do!aqua CO2 Music Counter - CO2 bubble counter
    • -30%
    CO2 Music Counter
    €23.03 -30% €32.90

    The CO2 Music Counter from Do!aqua is a glass CO2 bubble counter that makes it easy to measure the amount of added CO2. The CO2 bubble counter is filled with water and attached to the outside of the aquarium with the supplied transparent suction cups.

  • ADA CO2 Glass Counter
    €59.90

    With this ADA CO2 Bubble Counter you can keep very accurate track of how much CO2 is added to the aquarium. By counting the number of CO2 bubbles released per second, more or less CO2 can be added as desired.

  • DOOA CO2 Mini Counter
    €26.90
    Small, compact and solid. That is this CO2 bubble counter from DOOA. Ideal for adjusting the right amount of CO2 in a smaller 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 reservoir and are easy to count. This allows your CO2 system to be adjusted extremely precisely!

  • CAL CO2 Double Counter
    €29.90

    The CAL Aqua Labs Double Counter functions as both a normal and high supply CO2 bubble counter, combined in one elegant design. Easily determine how much CO2 is added to the aquarium.

  • CAL CO2 Double Counter ER
    €35.90

    The CAL Aqua Labs Double Counter ER functions exactly the same as the original Double Counter, but has an external opening for easy refilling.

  • Azaqua CO2 bubble counter METAL
    €14.90
    A metal CO2 bubble counter with integrated check valve. With the extra nipple it can be connected directly to the CO2 pressure regulator.
  • CO2Art Precision Stainless Steel Bubble Counter...
    €36.99

    Precision SS-Series Stainless Steel Bubble Counter Kit

  • Chihiros Bubble Counter
    €14.90
    Chihiros Bubble Counter is a sturdy bubble counter with integrated non-return valve. A CO2 hose can be connected at both ends. Thanks to the integrated non-return valve, the water cannot flow back.
  • 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!

  • 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.