CBD Hash Plant SCROG

Flipped to 12/12 about 5 days ago. Lilly seems to struggle with pH but still eating and drinking and looking good overall. Harriet is doing extremely well! Included some pics of my res change so you all can see. I use a brewing auto siphon to pull old nutes into a dedicated carboy and usually takes about 10 mins to drain fully but doesn't stress or jostle the root zones. Then a carboy of 2x strength nutes and mixed, poured down into 2 buckets. Those are then topped up to the 4gal mark with a 60:40 ratio of Milli-Q (6ppb) and tap (130ppm) to get 30-40ppm. Each bucket is then individually dosed for bennies and then pH-ed for each plant. I typically make the solution the night before and let it degas. Once drained, new nutes are siphoned in. Still not totally sure about defoliating and know I should be clearing out beneath the screen but afraid to do too much!