Eheim Long-Term CO2 Test Kit with Blue Indicator Fluid, 10 ml

The Eheim Long-Term CO2 Test is a monitoring indicator for aquarium owners who want to track carbon dioxide levels in their tank over 24 hours. It hangs inside the aquarium on a suction cup, and its blue liquid reagent changes color according to pH and carbonate hardness (KH), giving a visual read on CO2 levels.

Designed for planted freshwater aquariums that need steady CO2 monitoring without complicated test kits.

Key Ingredients

• Full ingredient list on packaging

How to Use

1. Attach the test indicator inside the aquarium using the suction cup.
2. Fill the marked chamber with about 1 ml of aquarium water.
3. Add 4 drops of indicator fluid to the chamber and wait for the color to change.
4. Compare the resulting color to the color scale.
5. Read your CO2 level based on the water's carbonate hardness (dKH) as shown on the scale.

• Continuous monitoring: tracks CO2 and pH changes over 24 hours
• Easy-to-read color scale: quick results without complicated test kits
• Includes 10 ml of precision indicator fluid for long-term use
• Compact, clear design that won't clutter your aquarium
• Strong suction cup for secure placement at any water level