- Simple CO₂ long-term test made from high-quality glass
- Simply hang over the edge of the aquarium without mounting material
- Particularly suitable for nano aquariums and small aquascaping tanks
- Length of the inner tube: approx. 45 mm
- Total height: approx. 55 mm
- For aquarium discs with a maximum thickness of 10 mm
- Approx. 3 ml of test liquid is required per filling
This form of CO₂ long-term test is used in aquascaping as an alternative Hang-On-Checker called. Thanks to its discreet design, it hardly distracts from the contents of the tank. The AQUA-NOA CO₂ hang-on checker made of glass is a simple way of permanently displaying the optimum CO₂ concentration in the aquarium. Simply fill the glass bubble half full with our check solution for CO₂ long-term tests and hang the test in the aquarium with the opening facing downwards over a pane of glass so that it can be easily read at any time.
The colour changes depending on the CO₂ content of the water. Blue stands for too little carbon dioxide, yellow for too much. Green indicates the optimum CO₂ concentration of 20 or 30 mg/litre.
Why a long-term CO₂ test makes sense
Knowing the CO₂ concentration in your aquarium is very important, as the CO₂ supply is not the only source of carbon dioxide in the aquarium. It is also produced directly in the aquarium through the animals' respiration or bacterial activity in the filter and substrate. Regardless of the type of tank, it is virtually impossible to reliably estimate these processes and you should therefore simply use a CO₂ long-term test, which allows you to easily read the carbon dioxide concentration in the water.
Note
The CO₂ indicator liquid is not included in the scope of delivery of the AQUA-NOA CO₂ long-term test / CO₂ long-term test, you will find it below under "Accessories".
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47169 Duisburg
Germany
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