Review on 🌿 Enhanced DIY CO2 Generator System Kit: Pressure Gauge, Air Flow Valve and CO2 Diffuser for Optimal Water Plant Growth in Aquariums by Brittany Webb

In general, the set is very good and allows a simple construction of a carbon dioxide reactor. The only problem I have is the needle valve. Right out of the box I had problems where the valve didn't work all the time even though the pressure in the reactor stayed the same. I set it to a few bubbles per second, and after a few minutes it was either bubbling or not releasing any bubbles at all. This went on for several days until it finally broke yesterday. I went to reduce the bubbles and no matter how tight I closed the valve, it bubbled up. I ended up ordering a different needle valve and I hope it is of better quality.