If you are going to take out those babies how long do you plan on waiting? If the root ball becomes to large it may stress the little ones some when you take them out of the RW. Also, the grow rocks seem like a good idea, but remember the roots are going to need more water than the RW cubes so water them seperatly. If those cubes are always water logged you may run into root rott problems.
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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