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Please help me know harvest time if I'm aiming for 15-25% amber trichomes max. Plants where early flushed 2 times and given 500ppm of nutes last feed. help me know the harvest time please

Please help me identify the problem as to why the leaves might be curling like that. I'm running two of these plants in the same environment however one is curling it's first true leaves in a way I've not seen posted here before.

I'm in 7th week of flower and my light some how went off for 6 hrs but I have another light about 4ft from it so it wasn't in complete darkness. Will it be harmful to my plants? Will it herm? Please help with your thoughts!

Hi guys, If the Co2 have been introduced to the grow room only in flowering (1st week) at what levels should the ppm be set? GrowZone shows already 475 From what i understand is that if it was administrated from beginning and bringing it up gradually it should be around 800-900 ppm at this...