CO2 Drop Checker Solution - ALA

To be used with CO2 drop checker. The solution changes color to provide a quick and accurate indication of CO2 levels in an aquarium. Colour guide is calibrated to 4 dKH. Recommended to be changed once a month or when the color fades.

• 12 ml bottle Yellow: high CO2 (danger to fish)
• Blue: low CO2
• Green: balanced - enough CO2 for plants, not too much to suffocate fish