CO₂ tester for aquariums – 2 pieces, transparent glass indicator with integrated suction cup – precise and easy to install

Essential Aquarium Accessories: Sufficient CO₂ levels in your aquarium are crucial for the health of your planted ecosystem. A CO₂ tester allows you to check the CO₂ levels in your aquarium at any time, contributing to healthier growth for your fish and plants.
High-Quality Material: The CO₂ tester is made of non-toxic, safe, and durable transparent glass. Its transparency allows you to easily see color changes in the water and read the carbon dioxide level.

Strong Suction Cup: The CO₂ tester is easy to attach and remove thanks to its suction cup. Simply install the product on the inside wall of the aquarium, 5-10 cm from the horizontal, and it is durable.

EASY TO CHECK CO2 LEVELS: The glass drop tester is very easy to use. You can easily determine the CO2 level based on the liquid color. Green means the CO2 level is optimal, blue means too little CO2, and yellow means too much CO2.

Practical and Simple: The package contains 2 glass CO2 testers. They are lightweight and practical for both professional aquarists and beginners.
Please allow 1-3 cm measurement deviation due to manual measurement. Thank you for your understanding.
Due to different monitor settings, the color of the item in the photo may differ slightly from the actual product. Please refer to the actual product.