CO2 Beetle Counter is a CO2 bubble counter for large aquarium tank requiring a large supplementation. As CO2 bubbles rise in a spiral, you can easily count the number of CO2 bubbles. The design combines a playful spirit with practicality.
This item is available only in limited quantities – read our article The ADA Beetle Counter: A Collector’s Item
*Use silicon tube for connection of Glass products, this is not included.