Some one was asking why their airpump was soo loud, well i figured id show a quick video of my setup. If you hang the airpump from a chord, the chord itself will absorb a lot of the vibration thus limiting the noise. In the video my airpump is running but you can barely hear it even when i am close. Also you MUST hang it so that its horozontal, the bearings inside you airpump will thank you. These things also generate a ton of heat so i use venturi tubes on a submerged pump and water falls to supply most of the oxygen for my fish, the airpump is secondary back up in case a pump etc fails.
