Dymax CO2 Crystal Indicator Large

The Dymax CO2 Crystal Indicator Large is designed to monitor carbon dioxide levels in planted aquariums. Crafted from clear glass, this indicator works alongside an indicating solution to deliver continuous, accurate readings of dissolved CO2 directly in the water column. Proper CO2 management is vital for healthy aquatic plant growth while preventing gas over-saturation that can stress or harm fish and other aquatic inhabitants. This large crystal indicator provides clear visual confirmation of gas balance for maintaining a thriving planted aquatic setup.