Sour Diesel Auto (Newbie Grow)

This week has been a roller coaster. While the banana tea clearly boosted bud size & trichome production, my leaves are now dying at a worrying rate. It's likely due to the banana tea--probably a pH problem or disturbance of the ionic balance in the soil due to potassium overload. My plan going forward is to do a thorough flush with clean bottled water followed by an application of a nitrogen/phosphorus-rich fertilizer of some sort. I will then lift the grow lights a bit while she dries out & recovers. I also bought some cheap pH strips to test the water...finally. Better late than never. 👻 I'm seeing my first dark pistils, so hopefully harvest is within reach. There are different estimations ranging from 60 to 75 days for this strain on various seed banks' sites. I was planning to chop around Day 84 but might have to go earlier if the yellowing doesn't let up. She's trying SO hard to preserve the bud sites & keep them green, but a few of the bottom ones are starting to lose color. On the plus side, she's looking frostier than ever with big healthy buds...it's just the leaves that are hurting. Say a prayer to the ganja Gods, y'all.