untill roots come out of the net pot keep the water level at the bottom of the net pot. i wouldn't put in above it for fear of just keeping it to saturated. But also, this is my first time growing with DWC.
Q: I assume it will be pointless to run the pump if the roots arent even submerged correct? I guess i'll have to mist them until they root out of pots huh?
I take it you are using the water farm setup in the 5 gal buckets? or mabye just a air stone. I would keep that pump going 24/7 to keep your juice mixed up and oxygen in h20...