If the breed is new to you, then it might just be nute-sensitive.
An all-over-yellow usually makes me think that the plant is dealing
with excess N. Good luck!
I have found that some plants are magnets....but I have typically
not really trusted the tent in question until it was hit hard when empty.
(i.e. only after all plants currently running are done) I'd at least pull
the affected and wait to see if they show up elsewhere.
Brrr! Sorry to hear that Jojo. As it gets hotter, the pressure increases, bug-wise.
I may shut down flowering for a couple of months, but for now I am just not rushing to add new plants
as I harvest things.
I must appreciate the effort NG....having NO sense about financial issues.
But I am often less-than-well prepared to absorb technical concepts when I am here. :^)
It does to look more like a burn than a week five fade.
It might just be turning. Best to wait it out. I might give it just water, keeping
an eye on the lower leaves for signs of hunger, for a week, just to see.
Good luck!