Mr. Aqua’s CO2 glass blown bubble counter comes with a glass hanger and suction cups. The spiral design allows for easier bubble counting.
To setup: Fill the counter with water. Connect the CO2 tubing to the inlet of the counter. CO2 gas will create bubbles in the water. Counter should be placed outside of the tank. Use the suction cups provided to attach it on the aquarium glass.
Dimensions: 2.5" x 1.5" x 8.5"