Greetings Grow Pros! I got a problem with New Clones

So its my first time trying to clone. I took 3 different cuttings from my soon-to-be flowering plants. I dipped them in the powder and stuck them in the rockwool cubes, that have been soaking for 24 hours in 6.0ph water. Before I stuck em in I made sure and powdered up the hole also. Now, its been 10 days of spraying and keeping them under 1 t5(24 hrs) , in a homemade plastic dome and all three clones have yellowing leaves (it looks like the green is being sucked down the main stem, the outer edges of the leaves are turning yellow). There is some new growth, very minor, the tips of which turned brown and had to be cut off. Today I noticed roots growing out the bottom of one of them! Yay!

Now, my questions are...

What do I do now with the one that had roots growing out the bottom??

And, What should I be doing with the others?

My instructions were to keep them under lights and spray em with water every so often. Should I be giving them any nutes?

Please help!!!

once it has roots, transplant them
no nutes until you transplant them

Thanks, but what about the others? How long to wait? What to do about the yellowing???

usually clones take (depending on variety/how vigorous mother plant(s) are) 10-14 days. some sooner, i had some take 3+ weeks.
the yellowing leaves is usually a good sign because it means that roots are forming, or about to form. once you transplant, in a few weeks the plants will take off in growth.
since i have a small space, i force mine into flowering.