Don't add anything till you see roots from the bottom. Keep them moist and that's it. After roots show place your cloning cubes in the larger cubes or what ever you desided to use. Start on a 1/4 nute for a few days to a week. Then you can start bumping the nutes to higher levels.
I have my other clones in week one of 12/12 and am jus starting to see little flowers starting they seem to have alot of big fan leaves tho should I remove any of them to let light into flowers?