【Package Includes】: You will receive 3 pcs aquarium CO2 drop checker and 2 suction cup, Includes hanging CO2 glass tester (6.1 x 4.1 x 2 cm), note shape CO2 glass tester (5.2 x 4.1 x 2.6 cm) and ball CO2 glass tester (5 x 3.4 cm). Enough for daily use and replacement. (No including CO2 indicating solution).
【Quality Material】: Our aquarium CO2 testers are made of high-quality glass material, non-toxic and odorless, crystal clear, observe the carbon dioxide content at a glance, safe and sturdy, and can be used for a long time.
【Easy to Install】: First drop CO2 indicator solution into the CO2 drop checker, add some aquarium water, and then turn the opening facing of drop checker down, attach it to the inner wall of the aquarium with a suction cup. The hanging CO2 glass tester just needs to be hung on the edge of the fish tank.
【Easy Detection】: The aquarium CO2 tester needs to be installed about 10 cm below the water surface. The color show: blue for low CO2, green for optimal CO2, and yellow for excessive CO2. Please replace the fluid every three weeks to ensure accurate and reliable results.
【Wide Application】: Our aquarium CO2 monitor can help you monitor CO2 content in your aquarium and keep your fish and plants healthy. It suitable for aquarium, freshwater aquariums, planted fish tank, tropical fish, aquatic plants, and so on.