Just a few time ago it was pubished in the channel GroWell Hydroponics, the video “Which Air Stone Do You Need?”.
As pubished in the youtube page by GroWell Hydroponics: “We put our 3 favourite hydroponic air stones for sale through their paces to see how well they performed at 5 different air flow rates. So how did they rank? Find out which air stone and pump you need now! Just watch our air stone bubbler comparison.”
You can check the video below: