Quote Originally Posted by TheConstantGardner View Post
My best DWC grows were when I made my own airstones (got tired of replacing blue stones every grow)

3/4" PVC pipe cut to length, put some steel ball bearings inside (so it wouldn't float), and capped at both ends.

Made my air holes with a small needle attached to a 45w soldering iron.

Drilled a hole in the end cap, siliconed in a nipple, attached the hose, and presto. Tons of bubbles!
That sounds like a cool D.I.Y. project.
I think i have all the things I need already.