Good call on turning the cams off. Definitely not worth the risk. Worked out OK for me, the one plant affected vegged so long it turned into a 9lb monster ( luckily plenty of room in a 100' greenhouse)
I'm running a 12 site e&f now set in a straight line 32' long against one wall in my GH. All AC/DC strain, 4+ feet tall, week 4 of flower, and look good. They've been fed NOTHING other than calcinit and jacks hydro 5-12-26 ( two dry powders) starting at 600ppm and peaking now at 850/900 ppm's (.5 scale). Last 2 weeks I drop down to 200ppm to flush.No res change-outs, little ,if any, PH adjusters. Occasionally I will foliar spray silica( pro-tekt ), or mag (Epsom salt) during flower depending on strain, and compost teas on vegger's. For the cost of one "magic in a bottle", I take 200+ plants thru a full cycle with great results. To me, your plants look good, but would be even better at lower feed levels. E&F buckets can be great, but must be dialed in just right for your particular situation to not fail miserably. Mine were given to me by a friend who couldn't get it right, so I've played with them a bit, but after this run with them I'll be converting them into a PPK style utilizing the bottom buckets only to experiment with next. Root clogging is a problem with e&f buckets, so length of veg time is critical. I tried something different this run to prevent that, so we'll see how it goes and will report back.
Are you using any airstones?
I'm aware of the theory that, due to the same hormone that triggers bud development also promoting root growth, one can get faster rooting clones by taking them in early flower. Is this why yours are? Or did it just work out that way? I take mine (when not coming from a mother) from sets of plants that are 1 week from flip, giving the donor plants time to recover from the shock, begin sending more growth hormones to the remaining tops, and hit flower at full vigor. I would worry about creating herms/mutations/stunted plants thru reversing their hormonal make-up. I've taken flowering clones in the past out of necessity. Some went fine, others, although quickly rooted, took forever to regain their vigorous growth. Topping and cloning 24 gg#4 today myself, will take at least 48 cuts and stick'em in an aero cloner, then keep and veg the best 24 after rooted, good to always have extra and be able to select out the best, most vigorous examples of a strain. (looks like you only took 12?)
Are all 12 plants showing the upward leaf curl, or just certain strains? What EC are you at now? Can't help with the Canna line, but will say I've always heard good stuff about their quality. My wife actually met the owner on her trip last year to the Netherlands! ( goes every year to visit family, flying out this thursday to Eindhoven for a month stay. We're in NorCal)
Enjoy the aromas, lookin' good
