The stuff I mentioned was used in pro industrial like situations, and we used it til it was gone. They changed the configuration of it, we used to have different concentrations for different applications, now it's called concentrate and you vary the exposure per variety of plant, I just leave it in there for a little bit and go for it. I have only had six cuts ever fail, all at the same time, same batch....I think it was too cold, and I rooted...or tried to root those in soil. After the aero was working , I never think of rooting in soil anymore, establishment is about the same, but I don't have to look at the half dead, wilted, sorry looking cuts anymore...LOL. I was two weeks to planting a soil rooted cut, ten days worst case scenario with the aero, since I added the hormex, IDK if the 90% humidity helps or not in the dome.