seedling rockwool

Hello All, So I am brand new to growing but so far have had a blast reading all of the information on the forums and other various sites. I finally got my tent all equipment set up. I ordered some seeds from Attitude and they have arrived to me. Took about 14 days ordered on a Saturday...

I have three LA Confidential seedlings in a humidity dome tray that almost have roots breaking out the bottom of the rockwool cubes, they're going into a ebb and gro bucket system but I think even tho they're gonna have a pretty good root system they're not big enough to be saturated in the...