Dry leaves

Tear down, new and less fertilization... that would be my tip.

Salt build up combined with long term over feeding. Probably too late to fix anything now, but may have been fixable 3 weeks ago when no doubt the first symptoms started showing. A "flush" and a reduction of fertilizers may see her get through to maturity....but the damage is already done and not reversible. It is not light related or a 'nutrient lockout".

Looks like Zinc deficiency, locked out if she's getting all her nutrients. I didn't notice a diary for this plant to get the details.

Hey!! 👋 It looks like a nutrient lockout. Water your plant thoroughly to flush the roots with pure water at a pH of 5.8 to 6. After that, start the nutrients again. Don't let the coco dry out completely. When you water, give a sufficient amount and remove the excess water. This helps prevent nutrient buildup.

Your light is probably too close, and your plant is experiencing heat stress.. are the nutrients all good? Raise the light, add an extra fan to disperse the hot spots, flush the plant, and the magic potion calmag.. (for everything) :D