That's a cool solution for the humidity gauge. I put a velcro strip on the wall of the tent and on the back of a cheap hygrometer to achieve a similar result. RH tends to be about 5% lower half way up the tent.Just are coming along nicely...
Just a heads up... I’m not sure having your humidity gauge in the dirt is a good spot for it. I think it actually measures the air flow from the bottom. (Did on mine)
I know the plants are smaller now, but you’ll want it at the canopy level at some point.
I actually had one above and below in my room when they got bigger.
I used an antenna (flag holder), so I could raise it as they grew. I just drilled a hole in the floor to hold it.
Have you given Emilyas watering article a read? It seems from the pictures that you aren't hitting the edges completely.
Sorry, not trying to hound you, just pointing out some things that bit me on my grow. Just curious... why no pH check?
I try to use Emilya's watering method. These seedlings are in 5 gallon pots so I water in a circle just outside the width of the leaves. I doubt if the roots have grown any further sideways than that. The next watering will probably be a drench and from then on watering will only happen when they dry out. Hopefully I've understood her correctly, what do you think?
Re. no ph. I'm growing in Promix HP so ph'ing the liquid inputs doesn't seem necessary. The substrate ph will rise over time, especially with Pro-Tekt, but it should not rise to dangerous levels over 90-100 days. @InTheShed corresponded with techs from the company, see do-we-need-to-ph-adjust-our-nutrient-solutions. Seems to work for him and others who use Promix and it sure makes life a lot easier not having to fiddle with a meter and not adding PPM with ph-up and ph-down.
Appreciate you taking an interest and I certainly don't feel hounded. I'm still a beginner and know just enough to screw it all up. Your questions/suggestions concerning RH, ph and watering hone right in to the trickiest parts of a cannabis grow so it is always helpful to review those areas.
Took a quick look at your journal, those plants are fantastic! I'll be reading it in more detail now to see how you did that!