I am a first time grower, growing for medical purposes. I have an aeroflo type hydroponic system. I got several clones from my bro in law and he put them in rockwool and used olivias cloning gel. He told me that when I get home to put them into my system and just use water. So I did this and it has been 2 weeks since I did so. I figured tere should be roots by now so I looked by pulling rockwool apart gently and come to find out there are no roots. I proceeded to check the rest and same issue. The clones are all still alive but most of them look pretty bad with yellow leave and some look wilted but dark in color. Two of the stems at the very end are curling up. What do I do and is it too late. For now I put them in neoprene inserts and just have them suspended in the spray without rockwool. Please help. Can they still grow roots at this point? 2 weeks no roots what do I do?