cloning from a hydro plant or a soil plant or whatever medium u use makes no difference as long as you follow basic guidelines to cloning cut with sterilized blade(never scissors) at an angle and soak bottom of stem immediately in water for a min or so to prevent air pockets in stem remove from water and use whatever cloning solution u choose after planting keep humidity up low intensity light a lil heat from below helps and DO NOT FEED until ur 100% sure it's rooted and shouldn't have any probs although some strains can be harder to clone than others the medium makes no difference at all
It's more about the actual plant(strain) than medium
Did I miss anythin guys?