Have just finished building an upflow scrubber from parts ordered from SM.
Used airline with holes/slits cut in it to deliver the air but it was to noisy (tank next to desk in office) so have tried it with an air stone fitted. I know the norm is large bubbles but have seen airstones used. There are now bubbles being trapped on the mesh and it's silent
From the 2 video clips which flow is better 1 or 2 and will an air stone still give good results?
1.
http://vid583.photobucket.com/albums...psongdn0kr.mp4
or is this ok
http://vid583.photobucket.com/albums...psigkex0wi.mp4
Thanks