Anywhere from 2"-4" to 18"s. I've heard to put my hand in front of the plant and if it gets warm after a minute, its too close?? So the plant should not feel any warmth??
I am using a 125w 6500k cfl and a 42w 3000k. They are currently 8"-10"s away as I decided to go with the average of the two suggestions.
Box temperature is around 78 degrees. I am using an inline vortex 177cfm with only 8 total cubic feet. I am using a dimmer switch at the moment, and when I get my tent for flowering, I will be using the vortex between the two.
This is my first grow and I have already made a few common mistakes along the way(Over fertilize, over water, crowded roots, inconsistent environment). So it is very hard for me to know if what I am doing is good or bad at this point, and shedding some light on this matter would be a great help! Here is a pic at day 20 from seed. 20!! HAHA I have seen twice as big after ten days! Poor OG, please don't hermie!!!:-) Thanks.