agreed. or some rockwool mats to lay that on so the roots have somewhere to go. imagine the roots doubling in size when ya switch to flower, so the pot needs to double in size as well (BEFORE 12/12)
Well i pour rock about 3 inches tall in the tray so the roots crawl all over user the rock Gotta Love the x nutrients.
I switch 1 MH and 2 HPS lights it seem working better than before 3 HPS ..