Well i wll putting some extra holes in these things then...thanks for the tip about the holes near the edges....I can see roots being torn off due to that. Latewood I dearly hope you are planning to let us know how you do your setup....please keep us updated on that! As far the RW goes, how often should the solution be changed? I change my regular res once week during grow...does it need to be more for RW? Thanks people!