Premium high-transparency glass that is corrosion resistant and not easily broken. Glass bubble counter: The spiral path rises with the bubbles, helping you gauge the CO2 amount in your aquarium by observing the bubbles as they move upward along the spiral. Easy to use: The spiral bubble counter comes with two suction cups for secure attachment to the aquarium. The position is adjustable as needed, so you can place it where it is most convenient and visible. Delicate design: Exquisite craftsmanship with a smooth, bright finish. The fine transparent glass blends with the aquarium environment for a discreet yet attractive appearance. Key features and benefits - Functionality: Visual CO2 monitoring through a spiral bubble counter to estimate CO2 delivery in your aquarium. - Compatibility: Suitable for standard glass aquariums; includes two suction cups for secure mounting. - Size and footprint: Compact and unobtrusive design that fits easily in most setups without obstructing fish or decor. - Material and performance: High-quality transparent glass that resists corrosion and resists breakage, maintaining clarity over time. Use scenarios - New CO2 setup in a planted aquarium: Attach the counter to the tank and observe the bubbles traveling along the spiral to estimate CO2 delivery and adjust as needed. - Regular maintenance and adjustments: Check bubble flow during routine care to ensure CO2 supply remains consistent with your settings. - Easy repositioning for visibility: Move and reattach the counter to a different area of the tank to improve visibility or to accommodate changes in layout or equipment.