Here's where it gets interesting. I don't know how it could be temp related since I control the environment pretty well. It seems like too much light (they are air cooled) and are 24" above camopy. I've never heard of too much light, though I have 2 1000hps about 3' apart over 4' x 7.5' table --aprox. 70wpsf. I wonder if it is the strain. (CHEESE). When I grew some sensi skunk with it a couple grows ago the skunk did not bleach out. Yes I have CO2 system but not running right now. I was hoping to get this sorted out first. I was thinking the curling edges could be a response to too much light, though it is classic heat symptom. I wonder though as I don't let temps reach over 85 at canopy and sometimes cooler. I hate not knowing the answer, but what can I say--I'm just not talented enough to figure it out.
grey1223 Reviewed by grey1223 on . Loss of leaf color The large fan leaves are losing their color too soon. I'm guessing there are underfed. For this cycle I'm trying a new nute regimen. Using DutchMaster Gold with MAX. I've heard very, verry good things about this nute and I'm now at 6 weeks flower (8 week strain) and it appears they were right--yield looks larger than any before. But, I may need to change amount I feed them. The symptoms first appear on middle rows of plants(highest intensity light) and then to the perimeter on the side Rating: 5