Soil pH around 6.5ish, flushed when noticed brown spots and then followed by 2 cal/mag treatments in RO water. (5 ml cal/mag in 1 gallon RO water). The brown spots continue to climb up the plant to the small, younger leaves near the beginning of the top cola. Very little growth over the last couple of weeks, only minimal flower development. Hoping to save this Blue Dream autoflower...but feeling like the outlook is bleak. Suggestions...?
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Might be the camera but looks like yellowing too so more than just calcium deficiency. What is the pH and PPM of the soil runoff? What grow light are you using and how far away is it from the top of the plant?