Been fighting something since early veg. Have no idea what this is. First 3 pics from last week, other 3 from today. Female Seeds C99 2x 240W BlackStar LED + 130W CFL 4" Centri + Phresh Filter temps are a little low and fluctuate a bit 60-65ish Humidity 50-60% COCO/vermiculite/hydroton with Canna Coco nutes and all Canna additives EC 1.5 - 1.7 w/ all additives right now, have tried higher and lower PH 5.7-6.0 Tried, less nutes/more nutes/flushing/no cal mag/more cal mag...Nothing seems to make any difference. Hand watering with 20-30% run off. Any ideas are much appreciated.
bump, i have a problem that looks very similar and i am wondering whats going on as well, mines outside so i thought it was pests or something
Tell me about your PPM and how close are your lights? It could be a burn. I had a plant doing that in veg alot and it was cause my lights were too close or my ppm was too high... Whens the last time you flushed it?
Hey Rapid, the guys in the Coco forum have been helping me out with this one. Think it was over feeding. http://forum.grasscity.com/coco-coir/1042359-first-attempt-coco-deficiency.html All the new info is in that thread. I've lowered the EC to 1.3 and am alternating between full strength 1.3 and half strength 0.8 feeding. The LED's are about 10 inches above and the CFL is just being used for side lighting at about 3-4 inches.
Thanks for the help RC, think I've worked out whats going on now. All the info is in my coco problem thread http://forum.grasscity.com/coco-coir/1042359-first-attempt-coco-deficiency.html