straight to 12/12 - 600 watt light, ionics bloom, 40 litres per min airpump and 12 airstones, 235 litre res to begin with, will drop to anywhere between 180 litres - 200 litres.
im not sure on weight as its my first dwc. the plants in the centre will be heavier than the plants at the edge.
in a 1m square flood and drain with 36 plants i would usually pull 16oz to 17oz.
Neat looking set up. I have no idea as I am a noob, but I thought that you didn't want reflective material under the plants. Something tells me you have busted that myth?
my closet size is 2'x3' i know that 20 plants in there may seem a bit cramped but after watching this video on how to harvest 15 lbs in 80 days anything is possible.