Im growing a Auto Diesel Ryder and its starting to preflower should i change the light regiment to 18/6 or a 20/4 rather then a 24/0 which is what it has been since seed
I have it at roughly 16 in. Seems fine for heat. Just not sure if I am giving enough lummens. I have the 1 400 HP's and on each side I have 2 23watt 2700k CFLs so plant is getting pretty much full coverage I think anyways
About 12 to 18 inches. That's what i did when I grew with CFL's time wise I've grown 24/7 and 20/4 and got more bud with the 20/4 schedule. But for first 3 weeks its 24/7.