yan402answered grow question 9 days ago Hey growmie, this is mostly Potassium deficiency, burnt leaf edges, yellowing from the outside in, typical K sign.
Looks like some Magnesium deficiency creeping in as well, interveinal yellowing on lower leaves.
With slow-release ferts and bottomfeed setups it’s pretty common for Potassium and Magnesium to run low in mid to late flower, especially if the plant is drinking faster than the media can release.
pH and slurry test seem okay, but I’d probably give a balanced feed with extra K and Mg or a light flush depending on runoff numbers.
She looks like she’ll finish alright, not a disaster in any way 🤞🍀❤️