Noob Tries Baking Auto Colorado Cookies

Things are still looking OK to me. The plants sometimes look a little yellow compared to many pictures I see but I think it may be caused by the light because if I put my hand between them and the plant they look more green. Anybody have any thoughts? Are they looking OK to you so far? They didn't grow much taller this week - less than half an inch. The leaves definitely started coming in, though. I'm looking forward to what is coming and hope to start seeing them "grow like weeds" in the near future. Righty (2 inches) seems to be a little further along than Lefty (1.75 inches) but not by too much, and Lefty has a little bit more bend to her stem. I had been watering twice a day but grew concerned I might overwater even though it was Coco Coir+Perlite which as I understand it is hard to overwater. So I made an adjustment and this week started watering every other day - nutes and PH'ed water alternating between the two. The hygrometer still shows the Coco as remaining slightly moist/I'm not letting anything get all the way down to dry. I also changed from our super hard+high TDS Arizona tap water to using RO water from a nearby business instead (getting it in 5 gallon re-usable jugs). That new RO water starts at 20 TDS instead of 440 TDS (Tap water before even adding nutes) which had seemed way too high based on what I've read. After doing PH minus to get between 5.6 and 6.2 PH the TDS for ROed water rises to about 150 for whatever reason (I'm still researching) but this is a whole heck of a lot better than tap water! Finally, I added an Inkbird temperature controller + a Lasko personal space heater to ensure the tent doesn't get too cold. Temp is now kept in a range between 68-74 pretty consistently and I am not afraid of things getting way too cold as the winter gets colder which is what I was facing before. Although the video doesn't show the leaves moving with breeze too much, they are when the front tent flap is closed. I read that having them shake a little helps get the stems stronger etc....so that was another "improvement" in recent days I hope to carry forward. "One love one love that's what you're telling me, Except for them, never them they're not your family, That's the same old story the same old ideology" - Translation of One by SOJA