you can use 18/6 or 24 it really just comes down to which ever you preffer, im not really going to go into the pros and cons of each one but will say both light cycles are widely used in cloning and veg with no problems.
you could try each one and make your own decision or you could just pick one.
bejay Reviewed by bejay on . my first closet to be built soon :weedpoke::smokebong: hey all im new here and im goin to build a 3 room cab. I used to grow with a buddy about 2 yrs ago so its been a while. ive never seen a cab setups till recently, and they look AWESOME! the cab i want to build is about 5'l x 4'w x 8'h flower 5'l x 4'w x 5'h t5 ho 4' 8 bulb(40,000lum) veg 3'l x 4'w x 3'h t5 ho 2' 8 bulb clone 2'l x 4'w x 3'h 1 125w clf each section will have its own door and air tight and light proof for veg and clone ill use 120mm Rating: 5