So I started a couple of SAD autos and they got off to a pretty rough start before I got them into my ebb and flow setup. I'm about six weeks in and they are still only about three inches high but are on their third/fourth teir and have started to bud already. I am using GH Flora nutes and am running 400w. of HPS. I also have one Humbolt I started three weeks ago (didn't think at first the SAD's would make it) and it is still pretty small. So here's the question: What should I use as a nute cycle? I have been giving them a weak vegetative mix but with the SAD's starting to flower and the Humboldt still too far off, do I keep the ratio in veg or start to mix it for bloom? Also- do the autos need 24hr. light or should I scale it back a bit? Any help would be great!
Just run the lucas formula, thats what I'd do. 8ml/g of micro and 16ml/g bloom. EDIT: as far as light goes, ive never done autos yet, but 18/6 seems to be the norm.