looks like they just have too much foliage. normally people take off some of those fan leaves and/or cut them. also it looks like you have them under a hps, this isnt a good light at all for clones. a low intensity light is best so the plants focus on making roots and less on growing. you might want to keep an eye on how much youre watering, looks like it needs some, but it could also be too much light. or heat.

i wouldnt be worried tho. if theyre rooted the hard part is over. they will bounce back in a few weeks