@Bunker, you probably want something a bit stronger than a regular magnifying glass, they sell cheapo 100x microscopes on amazon. theyre fiddly but work. a lot of people use usb microscopes which are surprisingly also like 15-20 bucks.
Yeah, it's nitrogen deficiency from the plant cannibalizing itself due to the vigor required for the flowers to finish and it's a good sign you haven't been overfertilizing.
Everything looks perfect dude. You might tie the branches out further next time, but thats like a minimal critique and dependant on how much space you have. For the next round I'd suggest defoliation (fan trimming for light), LST, and practicing HST.
However, as far as first grows go, I have absolutely no critique, your plant is extremely healthy and I expect you to have a good haul of meds.
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