My brother wants me to design a grow room. And I have a couple questions for all of you. The plan is to grow 6 NYC Diesel autos. In a nft system. First question is what spacing do I need for 2 rowed of 3? Second question is what lights should I use. Can I get away with four mars 300 watt leds? Or do I need more? Maybe six of them? Any and all input is greatly appreciated thanks.