Well, I have a seedling growing that I.was very rough on during it baby days. I had to massage the dirt all out from the baby.roots and place it in a rockwool cube. Mine was a bit bigger than your tiny little seedlings, but the roots still took some stress being forced into the narrow hole in the rockwool. It took awhile for me to notice progress in the growth ( the roots had to work there way dwn into the rockwool) but once I saw the tiny root poke through the bottom of the cube, I put it in my hydro bucket. What medium do u plan on finishing your grow in?? I think ur babys should be fine, its hard to kill a weed. I don't think you over germinated them either, I germinate my seeds differently than most ppl. My friend saw what I was doing and chuckled, saying how my seeds would never sprout if I did it that way, but I have 4 super healthy seedlings. :thumbsup: there's a few diff ways that work, whatever floats ur boat.