i believe it would greatly depend on the net pot size air pruning is ok but if its say a 3" little net pot thats a little to much pruning not enough room for roots to be very established.why does the bed have to be filled? I was told by Al B that the roots will be air pruned and I wont have a problem with it...
i think it will work great with 6 inch net pots with no problem they will root into the hydroton nicely and the little stray roots will be air pruned when the canopy gets thicker anyway you wont have to worry as much for the lights will not cook them itherThe pots are 6" in diameter x 4.5" tall..what do you think?