1PCS CO2 Drop Checker Water Shape Glass Hang On Monitor CO2 Indicator for Aquarium Planted Fish Tank

About this item CO2 drop checker made of high quality glass, which is non-toxic, safe and durable. And convenient for you to use. The color is transparent and easy to be observed. U-shaped design, just hang it on the edge of the aquarium with no suction cup. Hang on monitor CO2 indicator is used to monitor the level of CO2 in the aquarium, so that you can replace the water in time. Can keep the CO2 levels in your tank consistently by checking it regularly. Make sure your test kit is clean. Drop the carbon dioxide indicator (not included) into the glass CO2 monitor and hang the inlet towards the inside of the aquarium. Wait for about two hours to know the result. Great for monitoring the level of CO2, such as aquarium, fish tank, aquatic plant and aquaculture. Suitable for fish farming tanks, aquariums, aquatic plants and aquaculture, etc.