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I believe that you should just watch your plants for heat stress. On two of my plants I'm about 15" away and they are fine. But let's see what the more experienced farmers say. PeaceUsing magnum XXXL 8" diameter air cooled reflectors (huge!), I'm in the middle of week 3 of flower and I've got 'em 18" from the 1000W HPS eye hortilux light at 80-82 degrees at the top of the leaves. Should I keep this way the whole time or let 'em grow up to 12" from the light?? I'm running co2. Hot hot can they get?
I'm more interested in quality of bud than quantity, but I don't want to sacrifice quantity if I don't have to either.
Thx,
I have banged 26k flower rooms with no pronlem lights were everywhereDefinitely strain specific on how close you can go before stressing them out. Some girls take much more than others. Completely agree 18" is the safe zone in general. Stick to that and try to back off on your temps a bit if you can. IMHO
I'm more interested in quality of bud than quantity, but I don't want to sacrifice quantity if I don't have to either.
Thx,
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