Quote:
Originally Posted by Absynth420
im sorry to be skeptical, but to me it looks like a mag deficiency... ALL the leaf edges are curling upward. not the tips, mind you, but the edges. which is indicative of Mg deficiency.
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Mg def usually starts with the very tips (ends/point) of the leaves turning sideways some.
Looks like it could be a phos def, or chlorine toxicity. How about a shot of the stems/meristem?
Curling of the side edges usually signals a heat issue.