TCFM CO2 Glass monitor

Monitor your aquarium’s CO2 levels with confidence and elegance using the TCFM Glass CO2 Drop Checker. This essential tool provides a clear, visual indication of dissolved CO2 concentration in your water, taking the guesswork out of maintaining the perfect balance for thriving aquatic plants. Simply fill the glass chamber with the included reagent solution (4dKH water + pH indicator) and place it in your tank. The solution’s color will change based on CO2 levels: blue (too low), green (optimal ~30 ppm), or yellow (too high). Its compact, all-glass design ensures accurate readings and adds a sleek, professional touch to any aquascape. An indispensable tool for any planted aquarium enthusiast aiming for lush growth without risking fish safety.