Dark Devil Hydroponic

May 1st - pH 6.0, PPM 1280, 2.6 EC, 79/70f, 35% humidity - Water change, added purpinator since I found it on sale, plant seems happy from this past week, great sign. :) May 2nd - pH 5.9 -> 6.2, PPM 1380 -> 1260, 2.5 EC, 80/69f, 36% humidity - adjusted pH, likes to read a bit higher than usual according to my pH strips (~.2ish I believe), added a bit of distilled water, PPM was a bit high when testing this morning no idea why though. The plant seems O.K. May 3rd - pH 6.3, PPM 1350, 2.7 EC, 77/68f, 55% humidity - I started to add humidity to the cabinet to keep temps down and to help during flowering, I've got it outside the cabinet plugged into a humidity inkbird set to 60% RH and it'll allow it to fall 12.5% before turning back on. (Not trying run it 24/7) May 4th - pH 6.2, PPM 1350, 2.7 EC, 79/72f, 57% humidity - The plant is chilling, notice maybe some yellow spots on some fan leaves, if this continues I will turn off the humidifier, as that's what happened last time... Also raised the lights again, I wonder how big this one will get. May 5th - pH 6.1 -> 6.3, PPM 1280, 2.6 EC , 77/73f, 50% humidity - upped pH a tiny bit, added water to lower PPM May 6th - pH 6.5 -> 5.9, PPM 1350, 2.7 EC, 75/72f, 42% humidity - adjusted pH and added a little bit of water May 7th - pH 6.1, PPM 1600, 3.2 EC, 78/68f, 44% humidity - bucket is low on water, didn’t want to add a whole thing just to change it tomorrow, will start with more water (3.5gal) and add more water throughout the week compared to this week, I have started to experience clawing, possibly due to nitrogen toxicity, hoping to fix this upcoming week. And a noticed a few tiny rust spots on leaves randomly on the plant (not like it’s just fans or just old or just new growth, it’s sorta spread? Hoping it’s calmag?) Plant looks nice otherwise