Top Nature Aqua Glass Bubble Counter

The use of CO2 injection in a planted aquarium tank is extremely beneficial to live aquatic plants. However, the amount of CO2 released into an aquarium should be closely monitored to remain at safe levels for livestock while being sufficient for the aquatic plants chosen, and that's where a CO2 bubble counter comes into play. The CO2 Bubble Counter by TOP Nature Aqua is an accessory designed to measure the CO2 output within a planted aquarium tank by bubbles per second. This particular glass bubble counter sports the classic design that is sleek and slim. 

Notes: Fill up about 3/4 with water before use. Install a check valve below the bubble counter to prevent water from flowing back into CO2 regulator.