On Tuesday 3/4, Jose and I planted several non-GMO and USDA certified Organic seeds into a variety of mediums in several window-sill starter-kits just to see if there is much difference side-by-side.  We used BlackGold seedling mix, coir expanding pellets (similar to peat-pellets), and rock-wool.  We, of course, watered them in with seaweed. Put them on heat-mats and under T5 fluorescent lights.  Maxicrop or Dr.Earth - no difference  I Just came back to town from a few days away and the seeds are sprouted and well-up (3/10).  Tomato, Pepper, Cilantro, Basil (like CRAZY), as well as native Birch. Check-out the BRIEF veggie planting overview.