This diary is mostly being posted after the fact, as I've had a lot of travel and work has been extra busy. As this is written, these girls are in late flower and likely ~1-2 weeks from harvest, at a guess.
This is my second grow, and my first experience with Fast Buds genetics (Purple Lemonade).
In broad strokes: Purple Lemonade popped out her cotyledons a day ahead of Northern Light, but overall seems to be about a week behind her RQS tentmate over the course of the grow. I've had struggles with Purple Lemonade over most of this grow, but I think she's just perhaps a bit of a more advanced girl, and possibly Ocean Forest was too hot for her out of the gate. It feels like I've been scrabbling to get her fed appropriately, but I'm also pretty new to this. There's a chance it's just this seed, but I only got the one, so don't have a point of comparison. Her buds certainly won't be as fat as some I've seen on here, but they are doing their best.
Hey! This looks like leaf septoria (here's more info about it: https://www.royalqueenseeds.com/blog-leaf-septoria-yellow-leaf-spot-on-cannabis-plants-n678)
I'd recommend removing the infected leaves and controlling humidity (<40%) 🙌🏼
@James, well, I followed septoria guidance as well as possible. That is to say I removed all the potentially affected leaves on Northern Light, though Purple Lemonade would have been left with no foliage if I had done so for her, so I just removed the worst looking leaves. Still, gave the whole tent a thorough dry-out period. Northern Light has been pretty happy, and Purple Lemonade never started dropping foliage, so maybe she’s just a much hungrier girl than I gave her credit for and this was a CalMag thing. Or, as my partner has suspected from the start, just a bit of a sickly seed. *shrug*