Dymax Co2 Indicator

The Dymax Crystal CO2 Drop Checker, crafted from premium glass, provides an effective way to track CO2 levels in planted aquariums. Its color-changing solution helps aquarists determine if the CO2 concentration is too high, just right, or too low (requires the CO2 Indicator Solution, available separately).

Key Features:

• An easy-to-use tool for checking CO2 levels in planted setups
• Helps maintain consistent CO2 for plant health
• pH indicator solution sold separately