Sub, I found that when cloning, (soil), the medium must be moist, not wet. if you can squeeze water out of the soil it may be to wet. I have terrible luck when the soil is soaked...
I also found that newly cut clones do not like close, direct, light. every time the light is to close the clones wither and die. So I place the clones on my 4ft floros, right over the ballast where it is the warmest, and out of direct light (Ihave a mh up, about 6ft away). The heat warms the water, and as it evaporizes,it rises up through the plant cups,warming the soil, and out the top and collects on the inside of the dome, giving me 100% humidity.
My ? is when is it best to take the cutting, right after lights on or just before lights out?