Made some drastic changes for week 10
Watering less seems to work out well, but BBM1 hasn’t bounced back yet. Got my PH Meter to check on the water and decreased the light to 750-800 PPFD.
There are first signs of yellowing lower fanleafes on BBM2 & 3 as well. This probably resulted by watering for 2 weeks with PH 8,0 which caused nutrient lockout.
First watering I used citric acid to lower the ph, but just 24 hours later the ph rose again. Switched to a sulfuric acid for a hopefully more stable ph.
Also added a quarter dose of AN fertilizer to make sure there is plenty of nutrients available for recovery.
BBM#2 swells up nicely and seems to be healthy aside from one yellowing lower fanleaf.
Smells start to increase. Now very pungent blueberry terp on BBM 2 & 3 .
BBM1 still smells like passionfruit.
I don't believe your soil is depleted. Roots cant absorb the nutrients that are there when moisture levels aren't correct/ theres not enough dry out. The small root hairs begin to rot when the average moisture is too high. You might have to slightly adjust your watering amount to less, or adjust the time between waterings.. Thats my 2 cents based off what I see