Planted Aquarium Water Drop Model Acrylic Co2 Drop Checker | Co2 Indicator with Solution 15ML

Our test solution is blended, no need to add pure water, no need to worry about the mixing ratio, just use it directly. The response is faster and more accurate!! Easier to use Comes with a pre-mixed indicator solution, pipette, and suction cup. Fill the glass chamber and place it in the tank.