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CO₂ bubble counter spiral made of glass

This "Japanese" style CO₂ bubble counter is used to control the CO₂ supply to your aquarium and provides a particularly attractive view of the rising CO₂ bubbles. Fill the bubble counter with water before connecting it to the CO₂ system. The number of bubbles can be read very easily due to the twisted tube inside. Due to its closed design, it can be attached to the outside or inside of the tank as required using the transparent suction cups supplied.

Important: The bubble counter allows you to quickly visually check whether the system is working properly and how changes to the fine needle valve affect the carbon dioxide supply. The bubble count is not a reliable parameter for the CO₂ concentration in the tank! For this, you also need one of our corresponding long-term tests, a suitable water test or at least an indirect mathematical check using the pH value and carbonate hardness.

Scope of delivery

  • Spiral bubble counter made of glass
  • 2 transparent suction cups with clips for attachment
  • Suitable for pressurised gas cylinders and Bio-CO₂
  • Suitable for commercially available 4/6 mm hoses*

*Silicone hoses are softer and more flexible than standard hoses and are therefore particularly suitable for glassware

Installation tips

Break-sensitive glassware such as the bubble counter Spiral should always be connected to the tubing very carefully:

  • Do not exert any great pressure on the glass to avoid glass breakage
  • Heat the tubing in a water bath beforehand so that it expands and softens
  • Moisten the glass connections beforehand so that the tubing can be pushed on more easily
  • Silicone tubing is recommended for short lengths of tubing (e.g. inside the aquarium). This type of tubing is very soft and is therefore easier to connect and, if necessary, can also be fitted in tighter bends

Application

Place the bubble counter filled with water in front of the diffuser (the device for introducing CO₂ into the aquarium water).

To achieve the ideal CO₂ concentration of approx. 20 - 30 mg/l in the aquarium, you can first set a number of bubbles in bubbles/minute as a rough guide value, which is approximately one tenth of the tank volume in litres. Fine adjustment is then usually carried out with the help of a long-term test, as the CO₂ requirement of your tank naturally depends not only on the volume, but also on a number of other factors:

  • Movement of the water surface
  • Type and quantity of plants in the aquarium
  • lighting
  • Water temperature

The bubble counter and long-term test complement each other perfectly. The bubble counter serves as a rough guide and helps when setting the fine needle valve of the CO₂ system. The long-term test shows the actual carbon dioxide concentration in the aquarium water. This provides optimum support for plant growth and at the same time protects fish and shrimps from excessively high levels.

Responsible company
AQUA-NOA Faruk Cinar
Lanterstraße 37e
46539 Dinslaken
Germany
+49 2064 8266580
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1 Rating

7 March 2025 00:00

From: Kunde-4681129

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Great workmanship.

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Accessories

Two transparent suction cups with clip lie next to each other on a white background.

Average rating for 5 from 5 stars

Transparent suction cups in a double pack
3 × 2 different, transparent suction cups for 4/6 mm tubes

Standard price: €2.99
A bag with a rolled-up, black silicone tube. The bag is labelled with the Aqua-Noa brand logo.

Average rating for 5 from 5 stars

Reinforced black silicone tubing 6/4 mm for CO₂ glassware
Reinforced, flexible to prevent breakage in CO2-glassware

Standard price: From €2.29
Packaged, semi-transparent silicone tubing for CO₂ glassware. Tube rolled up in resealable, white packaging with print.
Soft silicone tubing 6/4 mm for CO₂ glassware
Avoid glass breakage by using soft silicone tubing

Variants from €1.99
Standard price: €0.00
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