Not sure what your set up is but with that much root they should be doing fine. I had some elites that liked diffused light .. Only clones I had that liked this and they were elite so this is why I suggest this. When your doing clones you don't have to go to town on the lighting . That is more for flowering. You can increase the light once things look better. Don't give any nute only vit "B" and keep water clean .. peace out Headband707