Dymax Crystal Co2 Indicator-Small

Description

The dymax crystal co2 indicator small size is a glass device that helps you monitor the co2 levels in your planted aquarium. It uses a ph reagent solution that changes color according to the amount of co2 in the water. The indicator is easy to use and comes with a suction cup for convenient placement. It is suitable for rimless and rimmed aquariums. The indicator does not include the solution, which is sold separately.