well actually it's not aero, it's DWC, aero has too many variables so I thought what the hell, raise the water level and just have them sit in bubbling water. It's the oldest rooting method known to man with the added benefit of a bubbler. So far so good, the tissue at the cut looks healthy. I did add Fulvic acid, H202 and one drop of superthrive just in case. The nice thing about the fulvic acid is it has a very low PK value with no nitrogen and it's almost imposable to overdose any plant so I thought, what the hell. I also let the clones soak in rooting gel for 20 min (as was suggested to me) before moving them to the bubbler. But seriously, thanks for the help with the rockwool, I could never tell when it was moist enough, you rock