please help my clone

urgent help needed off you pros i took 10 clones from a good mother put them in rock wool cubes under 110 watt cfl in a propogation unit only nuted once potted them up when the roots was through the cubes they are now 3 weeks old and look really really poorly already lost 3 leafs yellow then shrivel to nothing looked at the roots on the dead 1s and they are really healthy where did i go wrong

forget to mention that stems are really red aswell please help me

They need a touch of nitrogen, and a little more light now that they are rooted.

you think that would work stinky and is that why the other babys shriveled and died