My very first official grow!

Day 36 1/18/22 - Doubled in height last week! raised lights 7 inches above manufacturer recommendation. Gonna try to stretch the ladies a bit this week. I feel I have the watering part down as I water slowly and (now) I feel the bottom of the cloth pots to make sure I got it down all the way. Day 37 - a little more LST as I was late to the party of understanding just how important LST, and other techniques, are to increasing your yield. Once you do LST the first time it becomes completely obvious that this is necessary. Plants now need water at different times so I will no longer be documenting when I water. Also I think I correctly diagnosed a wind burn issue and therefore have raised the offending fan a bit. Day 39 - Noticing a little yellowing on some of the leaf tips and found a little more of what I'm calling wind burn on another plant. I moved one of the fans, set the lights back to 75% intensity, and lowered them back to about 20 inches above tops (Mars says 18 inches). I think the ladies will like this better than 3 Mars TS1000's at full intensity inside a 4x4x66 tent (450W total). Note - I'm struggling a bit with temps in this small room. Hard to keep the tent under 80. Then at night the substrate gets down to 66 along with the room temps. So, during the day, when it gets too warm inside the tent, I open the doors and things are OK again. This is not a long term solution cause I can't be opening and closing it every day. Plus it's winter and the outside temps go into the 20's (F) at night. Run the AC in winter? No way. I can't imagine what I'll have to do when outside temps go into the upper 90's every day. So what is the long term solution you say? I've just about made up my mind to do away with the tents and dedicate the entire room for growing. I see myself growing 12 of the same or similar ladies per grow - one grow at a time and I can only fit these if the tents go. I'm currently figuring out what is involved besides grabbing an AC unit and venting it and the room up into the attic. That is what I'm thinking at the moment. Day 41 - upped my game cause I knew that I could not be accurate using my current ph testing solution. Could only get kinda close maybe sorta. So I picked up a BlueLab PH pen (recommended by the "420 Scene"). Long story short it looks like I've been feeding the ladies something near 7.0. Now I am able to get 6.3 or 6.4 consistently. Maybe I want to be at 6.5. Not sure so I'm going for 6.3 +/- 1 for now. Hoping they like it better! Day 42 - life is good. This was a fun week!