Well I don't use that system. If its the type that sprays water on the clone stems I'm pretty sure the pH levels need to be right and there is a some kind of additives you could include like microhizae. As far as the moms, are they in soil? when was the last time the roots were trimmed and transplanted. If root bound the pH can get out of balance as it goes downhill too.I haven't been able to clone anything from my hydro system. And my soil grown mothers seems stunted (and they don't look healthy. Small leaves and slow growth. Northern lights and white widow) and clones off of those are not successful either. I have had my 72 spot humidity dome full with viable clones from winter indoor soil grows. Even cloned in straight water with ease. I'm saying I have had before nice roots in 2 weeks. Now, I can't seem to produce any successful clones. Even from super healthy plants from hydro. They just wilt ... the base gets slimy. I pulled some out to see if any root action was going on. Nothing. What am I doing wrong? Anyone else gone from cloning is easy ... to ... what's going on? I can't even produce one good clone. Feeling jinxed.