VoidObject
DWC/Bubbleponics Mod
The only difference I could see is the possibility of needing lower temps for more oxygenation in a recirculatory system that doesn't have air stones.Hey VO, from what I recall, you're not moving water through a recirc with a submersible pump, right? I just checked out this Heath method, and also took a peek at sqydro's DWC Without Air Stones thread, and I think res temps appear the largest issue; are you referring to filling h2o bottles and freezing them for res insertion? Just how much more strict do you think the temps have to be in a non-stoned system (hehe...so to speak)?
I freeze big water bottles and put them outside of the rezes in water.. kinda like a freezing moat.