Clones need a moist medium. other than that they can only feed/breath through the leaves. What works for me is miost warm soil(i bottom water only if i have to) spray the leaves 2x a day with water, keep covered with plastic to hold humidity. they are on their own in 10 days. thanks for the rep.
find some 5gall buckets, or 3gall pail....put em in the tub fill, drain, fill etc...
I tried in soil and didn't do too good. Most didn't have any roots at 2 weeks. I did it a little differently though. I took a 14" saucer and filled it with water. I put the clippings in 16oz cups, put them in the saucer and put Pepsi Domes over them (cut the bottoms off of 2 litres). It kept the humidity at 99% so I didn't have to open the domes, I just treated the water daily with Hydrogen Peroxide to keep the mold from starting. The temp was steady in the mid 70s.
I ran out of pepsi domes so I bought a big red tub, filled the bottom with water, covered the top with saran wrap, and treated the water every day with Hydrogen Peroxide. The temp in the tub was a steady 80 degrees.
I have a 4 bulb 4' fluoro fixture and I could only get 39 clones under them that way. I got 50 in the rapid rooter tray, and I can fit 3 or 4 trays under the light so if it works it's a better deal because I can root more at the same time.
But the Rapid Rooter is standing water, it doens't have a pump or anything. Everyone told me it would root in 7 to 9 days but it aint working out that way. I have a heat pad under it with a heat regulator to keep it at 80 degrees, and it's usually a couple of degrees cooler in the dome. Constantly 95% to 99% humidity. But it stinks when I open the dome, maybe I should treat it with some of the Hydrogen Peroxide. I didn't see any mold/mildew though.
Also, the soil I was trying to root into was FFOF, maybe that had something to do with the slow rooting, never thought about it. Before I do anything to upgrade I'm gonna have to sell some of these clones off though. I have 6 rooted from the soil so I'm hoping to get a bunch out of this rapid rooter tray. If not I'm pretty much fucked.
I also treated the water in the tray with Mycorrhiza hoping that would help them root faster, but so far no go. Maybe I should have put a little Mycorrhiza into the holes in the plugs instead.
And to top it off (good & bad news) I just flushed one of the moms and found out that the reason why the leaves are curling downward is because they're root bound in the 5 gallon pots. They're only 6 weeks old, so I guess I'm gonna have to buy at least 10 gallon pots to transpant them into which is money I don't have to spend, but I have to. And I have no idea how to transplant from anything bigger than 16 oz. lol
BTW, the flushing exposed some of the root tips at the drainage holes. Is this something to worry about or will she be ok for a day or two?