MiOYOOW CO2 Drop Checker, Aquarium Monitor Detector without Solution for Planted Tank Easy to Observe & Judge Results

【Detect CO2 Level】: Blue color means too little CO2; Green color means balanced CO2; Yellow color means too much CO2. 【Transparent Acrylic】: The aquarium CO2 monitor is made of highly transparent acrylic, easy to observe the results and not fragile. 【Convenient Use】: The aquarium CO2 detector is easy to use, built-in colorimetric module, can be opened to replace the test solution (the package does not contain the test solution). 【Suction Cup Fixing】: The acrylic CO2 detector is fixed by suction cups, keep the surface clean before use, install it at about 10cm below the water surface, it is firmly adsorbed and not easy to fall off. 【Application】: The CO2 detector is small in appearance, does not occupy space, suitable for all sizes of fish tanks aquariums aquariums.