Weekly update: August 6th Looking great, major spurt of growth on both girls, #1 (sativa leaning girl) had major final stretch to end off stretch in 3 days (hopefully). And #2 (stockier indica leaning pheno) has had a big increase in flower size in 3 days which is promising, and is also producing a very sweet and tropical fruity gas smell, this is TCP after all! Oh yea and I’m running about 1700 center 500 outer ppfd and tapering down if I see anything but nothing so far all good nice genetics, may drop in the next week even if no signs or symptoms, to prevent and not be too greedy. Now for the not so good… been getting 10% runoff almost every feed, but my runoff of #1 was 3500ppm and pH 4.5 and #2 at 5000ppm and pH 4.5. Been giving around 850 ppm input at pH 6.0, never went over 1000ppm input. So I have to correct with 25% increase in feed volume, 300-400ppm input at pH 7.0 for what I infer to be 2-3 feeds until runoff ppm is significantly lower, and pH is at least 5.5. UPDATE Aug 8: To address the toxic/locked-out root-zone I did a regular feed with runoff (1.5 gal total volume per pot @ 820ppm bloom focus), runoff consisted of pH 4.2-4.5 and 4000-6000ppm... OUCH. I then fertigated with 0.5 gal plain pH 6.5-7 dechlorinated tap water each. I repeated this a total of 3 times, to which the last flush had 3 ml/gal cal-mag. final runoff ppm @ 1000-2000, pH 5.3-5.5. To conclude, I more than likely wasn't achieving enough runoff per scheduled feed, and did not cycle a few plain pH adjusted waterings. I had almost the same thing happen last run with autos, except they were showing signs of lockout, these photo girls are not. I must do a regular watering every 3 feeds, achieve 20% runoff with high ppm feeds, and 15% runoff at least with mild to moderate ppm's. Lesson learned, I hope I get a full run in the future without hiccups like this. UPDATE Aug 9: Big thanks to @00110001001001111O for suggesting i omit the light hanger and hang from the carabiner, I thought I was out of vertical space until this was pointed out. Check him out, he always has well informed answers to grow questions: https://growdiaries.com/grower/00110001001001111o