First Ever Grow (RQS Solomatic)

I think she's looking pretty happy this week! Started watching the history of the temp and humidity. I think the temperature has a good looking differential, as far as I can tell. Seems the humidity is less stable than I'd thought, but it still seems to average around 50%, which I think is still OK. Looks like as of today, she's grown to 6.5 inches (giggity), which I think is pretty respectable (....more giggity). I moved the light up to 24" from the plants, as one of her roommates had a little touch of yellowing... which is probably "I want nitrogen" and not "omg i'm getting a sunburn", but figured I'd be safe and attempt to address both. I'll watch things at the new height and adjust if/as needed. She got her second round of nutrients today, upping the nutrient content to 3 tsp/gal. I also added some spacing/drainage on the grow floor, to avoid any wet feet and make sure the roots are properly air pruning on the bottom of the grow bag (I say this like I know what I'm doing, but I'm mostly parroting my partner's guidance). This necessitated a bit of rearranging, moving the humidifier to the far right of the tent and repositioning the intake fan's ducting a bit. As far as I can tell, she's about ready (if not beyond ready) to commence training. The central stalk is thick enough that I think I will need to start it in stages. Next grow 'round I will probably start the light a little lower in intensity to induce a little legginess early on, which I suspect will make for easier training? I think some defoliation might be in order too, but that's going to take some reading up, because I don't really want to thin the wrong leaves, and I don't really know which those might be. All in all, I think the grow is on track and it's certainly being a good learning process!