never saw a leaf like this before

Any ideas what would cause this? Yesterday it was not there now a few leaves are like this and all the leaves are yellower then yesterday. The yellow is starting at the bottom but it's not like a n def. Like in late flowering the leaf is almost pale green turning yellow... very odd.

2nd pic

What did you do to it?

Its just cannibalizing itself

Didn't do anything. Ph of soil is 6.3 ph of water is 6.6 using sugarpeak nutes with great white, roots eexcelurator, and molassesall organic grow. Growing under led.

i have one leaf that looks like that i been fighting mites tho

Check your roots.

What am i checking my roots for?

so your saying there's a problem with the plant taking in nutes so it's basically eating itself? That would explain that slight yellowing but what about that weird leaf?

What are the area temps? Day and night.

Lights on are 69-73 lights off are 65-70 RH is steady at 35-45%