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Nano CO2 Drop Checker - CO2 measured in the aquarium
Nano CO2 Drop Checker - CO2 measured in the aquarium

CAL Nano CO2 Checker

Tax included

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!

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


Out of stock

On 30 September no orders will be shipped. We are unavailable from 30.09 t/m 2.10.

 Customer ratings and reviews
 (4,8/5)  - 4 rating(s) - 3 review(s)
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CAL Aqua Labs Nano CO2 Drop Checker

Having an accurate CO2 content is essential in a planted aquarium. Too much CO2 is harmful for fish, too little CO2 inhibits plant growth, and works the growth of algae in the hand. With the CAL Nano Drop Checker, the CO2 content in the aquarium to read. The liquid in the Drop Checker changes color when the CO2 content changes. This makes it much easier to determine the amount of CO2 in the aquarium should be added.

Most of the CO2 checkers on the market are suitable for medium sized aquariums. When used in a small aquarium, where the free space is valuable, the attention is soon distracted. CAL Aqua Labs Nano CO2 Drop Checker is specially designed for a small aquarium. With a size of approximately 3x3 cm it is small enough to be not too dominating, but still large enough to enable an accurate assessment to do.

The Nano CO2 Drop Checker is a very fine CO2 checker which, thanks to its small size, is highly suitable for a small aquarium !

Features Nano CO2 Drop Checker

- Fast response time
- Easy to install and easy to read
- including 15ml indicator solution (4dKH) (ca. 15 refills)
- including suction cup
- approx. 3x3cm
- Perfect for aquariums up to 60 Litres
Content liquid compartment approx. 1 ml


Data sheet

Product type:
CO2 checker
Nano CO2 Drop Checker
Article number:
Cal Aqua Labs
30 mm
30 mm
Aquarium volume:
up to approx. 60 Litres
1 suction cup
By on  31 Jan. 2022 (CAL Nano CO2 Checker) :
The customer has rated the product but has not posted a review, or the review is pending moderation
By on  21 Aug. 2020 (CAL Nano CO2 Checker) :

CO2 meting

Aangezien ik het vrijmoeilijk vond om te bepalen of er voldoende Co2 in het water zit, is dit ene mooi hulpmiddel. Ik voeg nu easycarb toe wanneer nodig ipv dagelijks C)2 toevoegen.

By on  15 Dec. 2019 (CAL Nano CO2 Checker) :

CAL Nano Drop Checker

De CAL Nano Drop Checker is zeker niet de goedkoopste bellenteller, maar voor mijn nano bak de beste oplossing. Het is een handigheid om deze te vullen en te reinigen, maar geen spijt tot nu toe.

By on  21 Nov. 2017 (CAL Nano CO2 Checker) :

Werkt nu perfect!

Na een goede service mijn nano co2 cheker binnen gekregen. Na wat opstart problemen ( zuignap liet twee keer snachts los) werkt de checker na behoren. Het aquarium staat er goed prima bij op het moment!
(Tip plaats de checker onder water op de zuignap. Dit had ik in eerste instantie niet gedaan waardoor na verloop van tijd de checker uit de zuignap gedrukt werd door achtergebleven lucht.)

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