Review on Gugou 4 Inch Air Stone Disc Bubble Diffuser: Enhance Hydroponics and Aquariums with 2 Packs by Dustin Schultz

very quiet combo for its performance in combination with my Tetra Whisper air pump I have fancy goldfish so I usually leave the aquarium lid open to help with oxygenation but I needed more air so I turned to Amazon for a solution. It's relatively cheap compared to what you'll find in many stores and it comes with 2 discs which is handy. I wasn't expecting much but this product blew me away. Haven't tried any other airstones so can't give a good comparison but I've been using them for a few weeks now and will definitely be buying more. They look and work exactly as described and pictured, I have had no problems. They are compatible with standard aeration pumps and air hoses.