Roots and Airstones in DWC?.....

So im reading up on a few DWC grow journals and im looking at the pics right... well i had this thought: Alot of people leave their roots floating around in the res but what if we wieghted the roots to be over top of the airstones? Would this not be better than the roots just going where ever they please? ... im thinking the more O2 from being over the airstone would help out, what do yall think?

Or you could just weight the airstones down under the roots. I think that would be better..

Yeah you don't want to weight down your roots. Just let them grow. I think all beginner DWC growers are surprised with how little direct bubblage the roots need. It's more about the Oxygen being absorbed into the solution then anything. Plants can even survive for a bit if the air pump fails, or if you get really high and forget to turn it back on after reworking the tubing

Personally, I prefer Oxystones. They run about 4 bucks and produce a shit-ton of bubbles.