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  • €5.00 - €50.00

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.

There are 16 products.

Showing 1-16 of 16 item(s)

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  • 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.

  • 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.

  • CO2 Checker Globe
    €14.90

    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.

    Diameter: 35mm

  • 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.

  • CAL Nano CO2 Checker
    €29.90

    With this CAL Nano 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. Because of the small size (3x3cm), it is ideal for a small aquarium!

    Including:
    - 15ml indicator solution (4dKH)
    - suction cup

  • CAL Oracle CO2 Checker
    €34.90

    CAL Aqua Labs Oracle CO2 Checker combines the elegance of a glass CO2 checker with a white background, the interior of the liquid reservoir. This increases the contrast to be so simple, the color to read.

  • CAL Pearl CO2 Checker
    €45.90

    Accurately measures the CO2 content of the aquarium in one glance. Cal Aqua Labs "Pearl" is a CO2 checker with a double compartment. This allows the CO2 content in the aquarium to be accurately compared with the referentievloeistof.

    Including:
    - 15ml indicator solution (4dKH)

  • CAL CLIP nano CO2 Checker
    €29.90

    With this CAL Nano Clip CO2 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 on the edge of an open aquarium to hang out, the CO2 content in the aquarium can be read. Because of the small size, it is ideal for a small aquarium up to 60cm!

    Including:
    - 15ml indicator solution (4dKH)

  • CAL CLIP CO2 Checker
    €30.90

    With this CAL Nano Clip CO2 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 on the edge of an open aquarium to hang out, the CO2 content in the aquarium can be read. Because of the small size, it is ideal for a small aquarium up to 60cm!

    Including:
    - 15ml indicator solution (4dKH)
    - 1 suction cup

  • CAL Double Check v2
    €39.90

    Never bother with the treasures of the shade of green. CAL Aqua Labs Double Check v2 makes it possible to accurately the CO2 content of the aquarium to compare with a referentievloeistof.

  • Aqua Rebell CO2 check
    €15.90

    This CO2 indicator liquid is suitable for use in any CO2 checker. The liquid does not need to be mixed with water and is immediately ready for use. The langetermijntest remains a long period of working.

    Choice of: 20mg/L 30mg/L
    Content: 250ml

  • ADA CO2 pH kit
    €19.90

    ADA CO2 pH kit special liquid to the pH value of the aquarium water to check. For use with or without the CO2 Drop checker.

    Comes with a pH colour chart and measuring cup.
    Content: 5ml

  • CAL CO2 Indicator liquid
    €9.90

    Indicator refill liquid for use with CAL Aqua Labs CO2 checkers. The fluid consists of a ready-made 4dKH solution that turns green at a CO2 concentration of 30mg/L.

    Content: 60 ml

  • CAL CO2 referentievloeistof
    €9.90

    CO2 referentievloeistof refill for use with CAL Aqua Labs CO2 checkers with double compartment. The fluid consists of a turnkey solution with a green color reference for a CO2-concentration of 30mg/L.

    Content: 60 ml

  • 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.
  • CO2Art Drop Checker Solution (15ml)
    €5.99
    CO2Art Drop Checker Solution (15ml). It consists of a pre-made 4dKH solution containing the appropriate amount of indicator. Easy to use, no mixing required. Simply open cap and fill CO2 checker.