NotThaddeus
Well-Known Member
Hey guys, so 3 plants growing in coco, GH flora series plus Calmag, 3 weeks into flowering and like the title says I've got leaves curling upwards and purpling in the margins. Mostly on the upper fan leaves and smaller fan leaves towards the middle of the plants. I'm only noticing it on 2 out of 3 plants, and majoritively on 1 plant. Coincidentally, on the same plant I was noticing a calcium deficiency so I fed them the same amount of nutrients, but I added about 20% more calmag than normal and this happened overnight. Tempso with the hps on haven't gotten over 82 degrees, with lights off haven't gone under 65. Any ideas folks?
