**CO2 Drop Checker for Aquariums - 4 dKH Solution Kit - Monitor CO2 Levels in Planted Tanks (Ideal for Freshwater Fish Tanks & Aquatic Plants)**

Product Description

• Calibrated to 4dKH
• No mixing required
• Lab tested and guaranteed

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