Review on 🐠 Enhanced Aquarium CO2 Bubble Counter, Mini by S.T. International: Hassle-Free Monitoring and Control by Kimberly Bryant

This CO2 bubble counter is cheap and does exactly what it's supposed to. he counts bubbles. My carbon dioxide tank is connected to the return line of my canister filter under the tank, meaning I have no glass surfaces to prime the bubble counter on. Instead, this bubble counter sits on a small shelf in my closet. My previous gauge had a 'built-in' mount to some sort of glass surface and I had to try and hang it in my closet under the tank somehow. The teeth on my other counter also broke off trying to adjust the tube one day. I had to adjust it a couple of times and the hardware stayed intact. I was very happy with this bubble counter.