Dec 20 (day 11)
It is remarkable to me how much growth can happen in 24 hours. There are dramatic differences between yesterday and today and I would have to conclude that the babies are happy. :thumbsup:

First to the problem with the cotyledons. The yellowing is still there, but not quite so bad this morning and I have a theory. For the last couple of days I have had a small heat problem and could not figure it out. Temperature each time I visited the closet was at least 2 degrees higher than I had it set, at one point I saw it at 81 deg. Mostly it was hanging out at 79 deg and the humidity felt high. Stupid me... I had left my oven on and it seems that the heat was traveling across the ceiling into the next room and into the closet. The fan was bringing that heat down from the ceiling and into my project. Last night when I decided to have pizza for dinner I found this problem and corrected it so temperatures were back to 75 deg/70 overnight consistently. I think the babies appreciated that I was no longer trying to burn the place down and calmed themselves. Here is a picture of the cotyledons on #1.

Yellowing Cotyledon on my big bad boy


Next I want to notice the change since switching to the big SB44 T5 lights. My fastest grower was right at 2" and seemed to be stretching for light. Now vertical growth has drastically slowed and he is stretching horizontally and throwing out great growth to the sides. I can tell by his stability in the soil when I water that his root system has also developed well in this last week. Here I offer a side view so you can see how he has decided to tighten up and show off his heredity. :hippy:

Sneaking up on #1 from the side


So, things look pretty good here I think. I am still just watering (no nutes) and PH is holding at 6.3 after sitting out for 24 hours. I have also begun to aerate the water by shaking it up in a large jug before watering. The biggest thing I am doing is trying hard to maintain a consistent environment for them. The 20,000 lumens is at approximately 3-4 inches away from their tops, temp is 75/70 and light schedule is 18/6. Airflow is good inside the closet with a fan pointed at the light and causing a slight stir in the leaves of all my babies. Here are todays pictures!

#4, The Runt... looking strong and showing signs of staying short but stocky.


#3 and her crutch... Probably not necessary anymore


#2 - really starting to take off


#1 - he is really proud of himself.. don't tell him about my scissors


Enjoy your day! I am going to work on the grow box some more today.
Emmie