It looks that off to you guys
Not to me
Looks great dude. Any slight discoloration is always going to occur as the plant grows. Looks pretty pristine
You only got 4 weeks or so left.....
Just my humble opinion. Not a horticultural master. Dont fix anything till you get a good sign of deficiency
Lasthing you want is to hurt the plant by "fixxing" it...... now im not saying it looks textbook or anything. But you get what i mean
If the plant REALLY needs somthing it will take it from the lower leaves (for the most part)
Unless it is an immobile element (cant remember if this is quite right) iron ect it will show in the tops.
So unless you got a bunch of intervainial (spelling? ) chlorosis. Or yellow leaves on the bottom dropping off . Shes just using up some stored nutes.
Is it optimal to the degree .. no... does it have to be?.... sure if your trying to wring her for all shes worth lol but sacrificing taste imo
I wait till i can positively identify deficiencies after makeing sure its not a simple ph problem
Or nute lock out.... then deficiencies. ...
Like i said its just my 2 i have no phd lol