GGAF tent 1st grow ever

This week consists of June 3, 2022 to June 10, 2022 - Seeds were planted on May 27th, 2022 and they all sprouted on May 31st, 2022 (~4 days) After getting off to a great start with germination where all 10 seeds were successful the first week of vegetation didn't go quite as smoothly. LIGHTS: I'm running the lights on an 18-6 schedule. I have the dark time scheduled from 11am to 5pm since the lights increase temperature and during that time the outside temperature is at its highest so it seems to be easier to maintain proper temperature ranges with the light off during that period. WATER: June 4th I tested the soil PH and it was reading low at around 5.4 in all the tested pots, varying slightly higher and lower for each one. Thinking that I would have to raise the PH of the soil I then added the recommended amount of Big Bloom to distilled water that then tested at 7.7 PH I watered 3 times with about 50ml per watering. Then after doing some more research I decided to just use 6.3 PH for watering and continued to add 50ml of water 2-3 times a day. June 6th I then scaled back to once a day around 50 ml of 6.3 PH water. Starting on June 7th I lowered the water PH to 6.1 and stopped watering every day on June 8th and waited until the soil looked and weighted dry and then watered all plants with ~480ml of 6.1 PH and 400 PPM. This had approximately 1tsp/gal of Big Bloom but I kept adding more distilled water until I got the PPM down to 400 and then a touch of PH up/down to get the water right around 6.1. Water was at room temperature. TEMP/HUMIDITY: I started out the week trying to maintain a max light temperature of 80F and then a dark temperature around 74-76F. This was difficult as the outside temperatures started to climb into the mid to high 80s. On June 7th after getting great advice from @LegacyMarketFarm I pivoted to trying to maintain a smaller range between light and dark and increasing the max light temp a few degrees to a max of 84F and a min of 78F. Now humidity became a real challenge the last few days since the outside temperature went into the high 80s. The small 1 gallon humidifier that was set to run on a sensor with a max 75% was working well at lower temperatures but just couldn't cut it when the AC unit has to run more often due to the high outside temp. VPD was stuck above 2 for a while. Luckily I had another humidifier and added that to the other side of the tent just running all the time and turned on the humidity sensor for the fan controller and would trigger when it raised above 80%. This allowed the tent to return to good VPD much quicker after the AC unit would run and allowed for an average VPD in the desired range. The last day of the week I was able to get the variables ironed out a bit and am now seeing much more stable numbers in the desired ranges (except for the brief period when the AC runs and it dries out the air but the humidifiers quickly bring it back up): Temp - 79.4F avg - 76.0F min - 82.7 max Humidity - 69.3% avg - 40% min - 93.0% max VPD - 1.05 avg - 0.23 min - 2.06 max with the distribution being majorly in the 0.7 to 1.4 range and the high and low ends usually only occurring for a few minutes at most. Whole week numbers> Temp - 77.7F avg - 67.7F min - 92F max Humidity - 57.8% avg - 31.0% min - 93% max VPD - 1.37 avg - 0.20 min - 3.28 max CO2: Starting on June 5th I introduced carbon dioxide into the tent during the light schedule. The sensor is set to 1200 ppm and takes a minute to run on or off after the trigger level is set. This has the in tent ppm fluctuating between around 800 ppm and 1400 ppm. The regulator is plugged into the same outlet as the lights so it turns off on the same light/dark schedule. PAR: I only have a phone app light meter but so far the PAR appears to be sufficient for the increased CO2, at least in the area directly below the light with a PPFD between 400-600. Some of the plants that are on the edges aren't growing as fast as the others likely due to the reduced PAR. I did receive one of the ViparSpectra KS5000's that I ordered for a new tent but maybe I'll try it out in this one first before setting up the new tent to make sure that the plants can fully utilize the increased CO2 levels. ISSUES: Looks like one of the plants might have gotten nutrient burn and had some light spots on the leaves, I didn't do anything other than to just use some distilled water for watering for a day and then just made sure my watering solution was properly balanced afterwards. The spots haven't fully gone away but it continues to grow and seems relatively healthy otherwise. TECHNIQUES: I plan on implementing LST and ScrOG in the coming weeks. I decided against FIMing for now. I don't have experience caring for stressed plants and it's enough work just dealing with the challenging temp/humidity issues from my current tent location.