First Grow PXL and PK

1-12 Checked plants this morning. No signs of nut burn or stress. I did need to give the PK1 water. Gave plain RO at 5.9 PH. I had less than a gallon left after filling humidifier so I did want to play around with PH adjusters. I think 5.9 is good enough. The other plants are showing droopy leaves. perhaps 50 ml is too much to water every couple of days? Plants are starting on their third node, so roots should be establishing well at this point. I did do a check on them carefully sliding them out of the cups. Roots are white and bountiful so i do not think I have an immediate root issue at the moment, but I don't have x-ray vision to see inside the coir. 1-13 I decided to transplant into 1 gal pots with dry medium to help wick the moisture away. I also added more perlite to the mix bringing it to roughly 80/20 to aid in drainage for the next watering. I needed to buy more perlite, so while I was out, I also bought a hygrometer just on a whim. I did my best to calibrate the ACI probe to humidity using the salt method, but I never really checked the temp cal. I put the hygrometer in the tent and let it be for about 30 minutes. Coming back to it, I nearly flew out of my pants. I was nearly 10°F lower and 10% higher than the hygrometer on the ACI 69 pro controller. Huge problem when your running exhaust for VPI range of .8 - 1.2. This makes complete sense as while transplanting, I looked at the roots that were exposed on the sides of the medium. Perfectly healthy. There still may be some damping off, worst case scenario. However after doing some quick research, I came to the conclusion that I was over heating the plants while also having a VPD way to dry for the plants to transpire. I calibrated the 69 pro to the hygrometer to within +/-2°F and +/- 2%RH. Lights off right now for the next 6 hrs. I won't know if what I have done perks these girls up. First time growing in a tent. I just hope I didn't prolong their suffering unnecessarily. I didn't plan on taking clones this round, as I have 2 other strains I want to try. I know these plants can take some accidental neglect, but certainly note for this long, and at definitely not at this stage. All in all they still look healthy, so I don't think I was too far out of bounds that they won't recover just fine. 1-14 Coir was looking dry and the pot were definitely lighter. Plant leaves felt papery/brittle. I mixed a 1/4 strength solution of the Humbolts secret and fed 100ml to each plant. No run off. Lights off in ~2 hrs. I also turned my light down to help with destressing. Not sure if it was warranted or not. Lights all the way to the top of a 6' tall tent at 100% . Slightly on the higher side of the PPFD chart for this stage after doing the math. I don't have a meter so this is one of those things I knew I would be eyeballing. Plants were bending to the light so may see some stretch over the next day if these girls are recovering well. Again, not a bad things. I'll slowly bump it from there after a couple of days. Picture won't do it justice but I believe they are looking way more green than the night before. I'll check in with them again tonight and see if the nuts are helping or hindering. 1-15 Plants were not getting better. I decided to go a different rout. I know at this point I could not be over watering the plants. So I took a leap of faith and just fed them 50% strength till run of, plus one more cup (250ml measuring cup) around the base of the plants. We shall see. 1-16 Plants did a complete 180. Leaves are turning upward and returning to green. Thank God. Top of medium did not have any liquid to squeeze out so gave another watering. Things may be finally turning around. 1-17 Medium still wet. PXL1 has noticeable new growth for the first time in a week +. PXL3 starting to get dark spots on leaves. May be calcium deficiency. Coir may have leached this from the plant over the last couple of weeks and now the signs are showing. No watering today. 1-18 Plants leaves started to droop again. Top of medium did not have liquid when squeezed. Same dose of nutrients as prior. All plants showing signs of new growth! PXL3 has more dark splotches. Came back a couple hours later and tips started to show burn, but it was from the top down. This tells me Ph has to be off. Flushed the pots on PXL1 and PXL3 with 5.8 CalMag RO. Runoff was 6.9. this was after feeding at 6.0. May have to increase feed/water frequency to curb Ph build up. I will need to get some plant trays that add some elevation from the tub. That way morning feeds before work are easier. Also turned light back down to 60% in case the growth put them into a bad ppfd range.