CO₂ Glass Checker
The CO₂ Glass Checker is an essential tool for any planted aquarium, designed to visually monitor the carbon dioxide levels in your tank with precision and elegance. Crafted from high-quality, crystal-clear glass, it offers a sleek and minimal aesthetic that blends seamlessly into your aquascape.
Key Features:
Accurate CO₂ Monitoring: Indicates CO₂ concentration through a color-changing solution, helping you maintain ideal levels for optimal plant growth.
Premium Glass Design: Hand-blown for clarity and durability — ensures no visual distraction within your aquascape.
Easy Installation: Simply fill with indicator solution and suction it inside the aquarium.
Real-Time Feedback: The color transition (blue → green → yellow) provides an instant visual cue of CO₂ balance — green indicates optimal CO₂ saturation.
Universal Fit: Suitable for all aquarium sizes and styles, whether nano or large planted tanks.
How It Works:
Fill the checker bulb with CO₂ indicator solution, place it in your aquarium, and allow it to equilibrate. Within a few hours, the color change will reveal your tank’s CO₂ level:
Blue: Too little CO₂
Green: Perfect CO₂ levels
Yellow: Too much CO₂
Maintain balance, enhance plant growth, and ensure a healthy ecosystem with this beautifully crafted glass CO₂ checker — a must-have for every aquascaper striving for perfection.

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