horlback designed a system that had no airstones...the circulation, if done correctly
does not require airpumps, as the recirculating water provides enough oxy for your plants, for instance: ...in nft there are maybe an airstone in the res and that's it,
...in aero sprinklers spray create oxy, no airstones, except res...

With that said...It will not hurt a thing if you use airstones in all your buckets, but with airstones in the main res, you do not have to put them in your buckets...I would though, if it is within your budget, because, once again, it doesn't hurt...

As far as airstones damaging your roots...not gonna happen...
As far as fast flowing water, you can do that also, as long as you have your runoff,
set correctly, the more flow, the more oxy...some people use powerheads!!! Just make sure that you don't blow the nutes out of the system...hope this helps...
...sorry about the chapter...
latewood Reviewed by latewood on . Hydro Recirculating and Oxygen Query I have put a water pump in the last tub that i have with a hose leading to the resivoir. This is pumping the nutrient into the resevoir....... I have also put in an Air Stone into one of the tubs in the middle and also into the Resevoir for oxygenating. Will this take care of my oxygen and recirculating needs. Will it harm the Roots in that particular tub where the Air Stone is. Appreciate any comments Rating: 5