Man im following the biobizz chart, feed grow from week 3, I didn't buy root juice as the black magic had all that gear in it, my plants are flying tho not as high as st toms :0 , take a look at my journal I fed them from day 21 calmag and biogrow , now there on the whole lot , I had leaf curl because my light was to close, I got spots on my leafs because I got water on them while feeding them ...all this I learned here, I've seen an auto with no feed for 5 weeks....I've seen bigger daffodils lol autos don't live forever so I fed them following the biobizz chart