Dennerle CO2 Special-Indicator (OPEN BOX)

Refill Pack for CO2 Long-Term Test Correct

Dennerle CO2 Special-Indicator is made with a patented pH reagent that changes color according to the CO2 concentration in the water. It provides a reliable visual feedback system, allowing aquarium enthusiasts to easily determine if their CO2 levels are too low, adequate, or too high for optimal plant growth. With its easy-to-read color scale, the Dennerle CO2 Special-Indicator helps users adjust their CO2 dosing accordingly, ensuring a healthy and thriving aquatic ecosystem.

Highlights:

• Refill pack for the Dennerle CO2 Long-term Test Correct
• Enough supply for 5 months
• Includes a color comparison chart