SR Aquaristik CO2 Drop Checker 4 DKH Solution

SR Aquaristik drop checker solution is Ideal for use with the SR Aquaristik drop checker, drop checker solution helps maintain optimum CO2 levels in planted aquariums. - Blue Color - Indicates low levels of CO2 in the aquarium, slowly increase the level of CO2 - Green Color - Indicates optimum levels of CO2 in the aquarium, no action required - Yellow Color - Indicates a high level of CO2 in the aquarium, reduce CO2 levels immediately Calibrated to 4dKH No mixing required lab tested and guaranteed