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

Please choose a variant

Item question

We’re here for you!

Please enter your question and e-mail and we’ll contact you as soon as possible. It usually takes us up to 24 hours during business days to respond.

Thank you for your question!

Thank you, we’ll get in touch!

Close window

You already sent us a question.

Please wait a few minutes


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

Please choose a variant to see more information.

Item no.
Shipping weight

Customer reviews

This item has been rated 4.9 out of 5 stars
55 Reviews
Please sign in if you want to write a review. Sign in
5 Stars(51)
4 Stars(2)
3 Stars(1)
2 Stars(1)
1 Star(0)
Florian P.
Pico... Kleiner als ich erwartet hätte! Wirklich schön klein aber dann dieser Saugnapf...
10th July 2017
Aqua Rebell - Orb Checker - Pico
Aqua Rebell - Orb Checker - Pico

Das Glasteil an sich ist super. Toll verarbeitet und meiner Meinung nach mäßig abzulesen. Klar ist ein Teil mit weißem Hintergrund besser abzulesen aber so schön klein und clear... (read more)

Fabian B.
sehr schönes Design
6th April 2016

Dieser Orb Checker sieht nicht nur gut aus sondern ist auch leicht zu handhaben. Für kleine Aquarien unter 30L evtl. nicht so zu empfehlen, da dieser etwas groß wirken kann.

Franziska K.
Solider Dauertest mit kleinen Schwachstellen
19th August 2016

Ich habe nun mittlerweile 2 dieser schönen, schlichten und unauffälligen Orb Checker in meinen Becken und bin im Großen und Ganzen zufrieden! (read more)

View all reviews