Week 6-7 flowering plant with dark upper fan leaves

Hi all,

Noob with first grow question/concern…

Plant is entering week 7 of flowering

The top fan leaves of a couple of colas are turning dark as pictured. Not sure if seeing them as purple or black (the strain is wedding cake). It doesn’t exactly match nutrient deficiency symptoms I researched, maybe copper? I know some of the tips on other leaves look like a little nute burn.

Trying to get some more experienced eyes on this and hoping for the best. Any thoughts?

too much N? I know people like to see some kind of fade going at week 6. but i could be wrong.

Lol

the N is a tad to high in any case flush and finish with only water

A lot of those fan leaves could be removed as well

They still have a long way to go. Like a month or so. That doesn't look like an excess of N, well I once had one and the whole leaf turned dark green, not just stripes. Maybe its just genetics. They look healthy overall, I say keep doing what you doing till the end.

You got a little bit of tip burn but they look pretty healthy, lots of strains don’t really start showing their colors till around week 6 in my experience

looks fine, the fan leaf color is normal, its genetic. dont cut them off. let the plant fade naturally

the tips isnt nute burn, thats slight K def or VPD is on the high side.

what is temps and humidity?

I think they look pretty healthy. I strive to have nice green plants all way through flower. They should fade enough when you back the nutes off the last couple weeks.