So I am new to coco only did it once with amazing results in a tent. Now I have a room stepped pot size up from 1 gal fabrics to 3gal fabric. Room height almost same specs as tent bit pitched so lower in some areas. So I wanted to veg 8 weeks but with height issues maybe more like 4-6. And I wanna go ahead and put 1st layer down already. So I need advice on plant spacing because once trellis is down its down.