I sent a long post to you and it didn't post for what ever reason, doh! Well what system or method are you trying to use and why? Roots have anchor, tap and feeders when you say you want to let them grow for whatever reason then you may rethink that because you don't want to stress them with a educated plan IMO. You could throw a home made bubbler together to take care of them until your stuff arrives for under $50, or you could just throw them in a soilless mix like ProMix right now.
Sorry, I spent so much time on the original post that I sent that I don't have as much time right now.
Adieu
BlueBear Reviewed by BlueBear on . Rockwool grow questions Heya This is my first serious attempt with growing soiless in rockwool. I've got some nice Diablo(Next Generation Seeds) seedlings in my 4"x4" rockwool blocks. Growth looks good, and after 5 days going from the 1" cubes to the 4", the roots are starting to come through the bottom. This is where I have a question, how long can you allow the roots to grow through the rockwool cube? I have them in a cloning tray, so the roots will presumptually grow in the tray, sucking up run off Rating: 5