Gorilla Girl F1 Fast_Basement Grow

Just a 1.5 Gal Oxy water feeding this week at 6.7 pH. The compost tea I prepared made jt take off but could have given it a bit of nute burn as well. Last pics show brown spots appearing on middle to lower leaves. Flourishing otherwise, and boy that smell is coming in! As for humidity I’d like it to be lower obviously, around 40-50% at the highest, but the ambient room is humid as well and I’d need to bite the gullet and get a substantial dehumidifier. However, the plant isn’t bothered and there is plenty of airflow.