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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

  • Brand: Aqua Medic
  • Brand: Dennerle
  • Dennerle pH Controller Evolution DeLuxe
    €349.90

    CO2 control in the aquarium with electronic precision: always the correct pH value of the aquarium water. The Dennerle pH Controller Evolution DeLuxe is a very complete solution to automatically supply the aquarium with the right amount of CO2.

  • Dennerle CO2 disposable bottle
    Content: 500 gram 1200 gram
    €26.49

    Benefit from the convenience of a Dennerle CO2 disposable bottle. The CO2 bottle is filled with 500 or 1200 grams of CO2 and is immediately ready for use.

    Contents: 500 or 1200 grams

    Price per piece

  • Aqua Medic CO2 reactor 1000
    €99.90

    Dissolve CO2 in a large aquarium with the Aqua Medic CO2 reactor 1000. This CO2 reactor can be placed in the aquarium furniture and connected between the filter and the outflow. The flow ensures maximum contact time between the water and CO2.

  • Dennerle CO2 Adapter disposable bottle pressure...
    €23.99

    With this CO2 adapter it is possible to connect a Dennerle CO2 pressure regulator for disposable bottles to refillable CO2 bottles. Use this adapter for the CO2 connection to use the Dennerle Evolution Quantum or Primus pressure regulator in combination with refillable CO2 bottles.

  • Dennerle CO2 Adapter Refillable pressure regulator
    €21.99

    With this CO2 adapter it is possible to connect a pressure regulator for refillable systems to the Dennerle disposable bottles.

  • Dennerle CO2 Adapter for Nano pressure regulator
    Type: Wegwerp Refillable
    €20.79
    from €18.79

    For aquarists who want a larger CO2 supply, Dennerle offers additional adapters, which allow a combination of the Nano pressure regulator with all common, refillable CO2 bottles and Dennerle 500 g CO2 disposable bottles.

    Choose:
    - DE-2997 - Nano pressure regulator on disposable bottle
    - DE-2998 - Nano pressure regulator on refillable bottle

  • Dennerle CO2 pH Electrode
    €89.99
    Accurate pH electrode from Dennerle for continuous measurement of the pH of aquarium water. The modern gel electrode can easily be connected to all Dennerle pH controllers or other pH measuring devices with a BNC connection.
  • Dennerle pH Electrode Set
    €115.99
    A complete set with all necessities for the pH electrode. A reliable measurement of the aquarium's pH is essential. Ensure optimal measuring results with this set. Easy in use!
  • Dennerle CO2 pH electrode holder
    €12.99
    For the secure attachment of the pH electrode in the aquarium. Made of high-quality plastic with light-resistant screen against algae growth.
  • Dennerle Distilled water (250 ml)
    €8.49
    Distilled water (250 ml). This water is used to rinse the pH electrode during calibration work.
  • Dennerle Calibration liquid pH 4 (50ml)
    €8.49

    Calibration solution for pH electrodes. Every pH meter or pH electrode must be calibrated over time. This ensures that the measurement remains correct and reliable. Because this pH calibration fluid always has a value of pH 4.0, the measuring instrument can be adjusted accordingly.

    Contents: 50 ml

  • Dennerle Calibration liquid pH 7 (50ml)
    €8.49

    Calibration solution for pH electrodes. Every pH meter or pH electrode must be calibrated over time. This ensures that the measurement remains correct and reliable. Because this pH calibration fluid always has a value of pH 7.0, the measuring instrument can be adjusted accordingly.

    Contents: 50 ml

  • Dennerle KCL liquid (50ml)
    €8.49

    A pH electrode or pH meter is a sensitive instrument. To protect it, it should be stored in a KCL solution. This KCL storage fluid significantly extends the life of the pH electrode.

    Contents: 50 ml

  • Dennerle CO2 Bottle base
    €9.99

    CO2 bottles can only be used in an upright position. All 500 gram CO2 bottles have a round bottom, making this not possible. This Dennerle bottle base for a CO2 bottle makes it possible, for example, to safely place a 500 gram CO2 bottle upright. Suitable for bottles of 65mm.