Auto Purple Kush #1 in Hydro w/1500w led

So we had a rough start at the beginning of the week. 2 days after I did her nute change, I left town for 2 days, and during this period, PH spiked. This is not a common occurance for me so was completely unexpected. Because of this, we experienced some extensive damage to some old growth leaves. The damage has slowed greatly at this point, and she still seems to be growing in height. No damage to any leaves near the buds, just the lower old growth ones. As such, I remved them when they were mostly yellow and damaged. On the Plus side, we have gotten temperatures well into the green zone for the tent. This was accomplished by installing my proper fan that I still had in the box. I always felt it was too powerful, and it yet may be, but right now, its keeping air flowing and temperature under control. Humidity has also been extensively corrected this week with the installation of as humidifier. Until the new ligh arrived, I had no clue my humidity was slow low ( it came with a monitor ). I have gotten it up from its 18% average to 36%+ which is a great improvement. I may never see 50% in this tent, but I am much happier now. Day 24 - Damn this calcium? deff. Some of the oldest biggest leaves seem to be taking the brunt of the hit. PH @ 5.85, Tent Temp @ ~27c, Humidity @ 18%, PPM @ 400 Day 25 - Leaves are showing less neut burn at this point, but still occurring. Hopefully the fixed PH resolves this. PH @ 5.75, Tent Temp @ ~26c, Humidity @ 35%, PPM @ 380 Day 26 - Removed 4 lower leaves that appear completely dead from what I beleive to be Calcium Deff. PH Holding at 5.75, Tent Temp @ ~25c, Humidity @ 35%, PPM @ 330 Day 27 - Plant did not seem stunted by the removal of those 4 leaves. Minor deff still showing, but very little comparitivley. PH @ 5.75, Tent Temp @ ~24c, Humidity @ 36%, PPM @ 270 Day 28 - Plant is doing well. 8.5" tall, getting nice and bushy. Started a pretty odour. PH @ 5.70, Tent Temp @ ~24c, Humidity @ 33%, PPM @ 250. Humidity dropped a bit as the humidifier glitched.