Yellow leaves + burn

Good luck my friend, I had the same problem on my mimosa cake before and I stopped giving it calmed and the problem stopped

I would give them less calmag maybe 0.5 actually or nothing. My plants are in week 3 and I don’t feed them calmag anymore. Only in the veg phase and first flower week. Depends on ur water ofc. But try to give it less and try to give them some extra pk booster and you will be perfect. Organic has no matter

in fact they have some small deficiencies, but nothing serious!! especially week 8!! you don't need to feed them too much anymore.. you should leave it as is and concentrate on the flush!! this is the most important

Oh oh, you used the magic buzzword, "ORGANIC" Unless your in coco, probably should not be using cal mag every watering. Too much calcium starts to block uptake of other nutrients especially iron. If I had to guess I'd say she is dying for potassium. Yellowing of leaves starts from tips and works its way inward, it tells me nutrient allocation is dictated by the plant, it's a mobile nutrients, brown tips.