Straight water for aerocloners all day!
For your harder to clone genetics you can soak stems in bloom nutes at ~15% for an hour or two.
The phospherous can and will
help to promote root growth
Then pop into plain water. I
acfually prefer tap to RO or
filtered for cloning... keeps things cleaner... but I also have pretty good tap
I had an interesting experience with my leaf mold bins. Some soil got into the mix and was laying in some water drains at the bottom. A cutting that had been laying on its side with stem in the dirty wage had some banging roots started. Exposed to broad daylight and all. No aeration. stem was half covered in water. Make me contemplate an open tray cloning method. Something like a cookie sheet with cuttings scattered around some lightly phos' d water thats only a couple millimeters deep. Submerge only part of the stem at the tip so half the hollow area is exposed to O2. Can prop the cuttings so stem is taking water, as well as some dangling leaves.
Maybe im just high... but imagine never buying a not neoprene insert