min 12 per plant more likely a lb per plant if the fans and heat are kept nice,over kill on the in let and out let.
I send you a feeding sced that if you use it and the room is set up right,lights kept at right height.The right ec at the right time auto pot system or any hydroponic set up friends use same feeding sced and there yeild's have gone from 7/8 dry per plant to 12/16 dry per plant.
But there are a lot of factors healthy clones perfect set room,i don't ph its simple and any one could do it.
Also you need the height to get these weights,i flower at 2 1/2 foot to 3 ft,most of my vegging is done under 2 t5's a 4 tube one and a 2 tube one with a 4 ft flouresent on the custom built boxes i do