Aqua Rebell Orb Checker

Aqua Rebell Orb Checker

  • Made of high-quality glass
  • Unique round form, very unobtrusive
  • Facilitates easy determination of the CO2 content
  • The necessary suction cup is included
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An elegant handmade glass indicator, usable without any suction cup. Hand made with high quality glass, the CO2 Indicator can be cleaned easily using bleaching agent when dotted with algae. Indicator Solution is sold separately. Rinse glass piece thoroughly before putting it back to use.

Maintaining the appropriate CO2 level is critical in a planted aquarium. Too much CO2 may harm your fish, whereas too little CO2 decreases plant growth and allows algae to take over. The CO2 indicator makes it easy for you to know the CO2 level inside the aquarium by comparing the color of the reagent.

The CO2 Indicator can be cleaned easily using bleaching agent when dotted with algae. Rinse glass piece thoroughly before putting it back to use.


  • Transparent suction cup included
  • Made of high quality glass
  • Please note that no indicator solution is included


Aqua Rebell - Orb Checker - Pico
Diameter approx. 2,0 cm
Aqua Rebell - Orb Checker - Nano
Diameter approx. 2,5 cm
Aqua Rebell - Orb Checker - Normal
Diameter approx. 3,5 cm

Aqua Rebell

Aqua Rebell

Aqua Rebell is our own aquatic plant fertiliser label. A great number of planted tank enthusiasts in general and aquascapers in particular use our products to supply their aquarium plants with nutrients.

When developing fertilisers and other aquascaping-related products, we work hand in hand with a base of aquarium enthusiasts and aquascapers, and we try to realise as many of their desires and ideas as possible. Quite often, ideas and wishes uttered in our aquatic plant lovers' and aquascapers' community are the basis, on which we develop new products. These are then thoroughly tested by experienced aquarium keepers and aquascapers. Behind our product range, there are a lot of innovative ideas and long-term experience, and they are tested in real life. For us it is important that aquarium keepers and aquascapers are successful with our products and that they are thus enabled to make the utmost of their tanks and aquascapes.

General information

Item no.
EAN 4250585200180
Weight 0,05 kg
Shipping weight 0,10 kg

Customers ask customers

You have questions about this product? Ask other customer or our support team about this product!

dDoes this drop checker work with the Aqua Rebell CO2 Check 250m refill ?
Marin L.
Apr. 2023
Verena Lutze
Apr. 2023
The Orb Checker works in conjunction with the Aqua Rebell CO2 Check 250m refill as well as with all other CO2 Check liquids.

Customer reviews

This item has been rated 4.9 out of 5 stars
37 Reviews
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5 Stars(34)
4 Stars(2)
3 Stars(1)
2 Stars(0)
1 Star(0)
Stavros V.
14th March 2020
Aqua Rebell - Orb Checker - Normal
Aqua Rebell - Orb Checker - Normal

Cute decorative bubbles not annoying at all so no need to hide them behind plants. I am very happy i bought them eventually instead of others. (read more)

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