This is only my second grow so I try to keep it very simple. I have them in 8 inch pots using Miracle grow potting soil. I use plain tap water until I got the fourth set of leaves. Then used MG noots at 1/4 strength until their 3rd week then switched to MG bloom booster at 1/4 strength slowly working up to 1/2 strength. They are under CFL's kicking out 24,000 lumens 24 hours on a height adjustable table. I also use my noots for 5 days then flush for 2 then repeat. They seem to respond well to that.