Ordered a cheep 4X4 grow tent today. Its a little large for a 600W but I felt a 3X3 was just too small for growing 4 autos or photos at a time. I would only be able to grow 1 photo in a 3X3 and the tent will be doing both. After I harvest my oldest plants I will probably start 2 autos in the tent and after I harvest this plant I will start 2 photos.