Hi, been lurking for awhile but haven't posted yet. I want to know when I should transfer out of my 6" pots. My 7 plants are about 4" tall and are about 2.5 weeks into veg. I have them under 400w MH lights in a closet set up. Temps range 70 - 85 F. Not nutes yet but will start with 25% strength with next watering. Please let me know how big they should be before I need to transfer them out. Thanks