Roots organic original soil to start with, I amended with Dr. Earth All Purpose 4-4-4 at 2 tbsp per gallon. Also added some worm castings. Seeds were germinated in their final pots; 3 gal fabric.
@Odin9, I started with it dimmed to 50% I believe, and about 32" from the top of the pots. I'm now at about 28" and 80%. This is my first run with this light. All of my plants are super short and bushy, so I will start my next run at lower power so the girls stretch more.