First time growing with coco and liquid nutes. Past experience all soil with dry amendments.
Seedsman Gelato auto, 7 weeks from germ, fabric 2 gal pot, FF coco, FF nutes, 18/6 light, 4x2 tent, temp 77-70, humidity 50-55%, water-feed-water rotation 5.9 to 6.1ph. Recently developed tiny brown spots and slowly starting to spread. I've read possible cal def. because its absorbed between 6.2 and 6.5 but scared that is to high and will lock other nutrients. Any ideas on what those could be and steps I should take to fix?
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calcium deficiency or manganese deficiency. How often and at what dose have you been feeding CalMag?
Definitely looks like calcium deficiency, coco is notorious for it.
Definitely looks like calcium deficiency. Have you given it any calmag?