1st grow Wedding Cake, Watermelon, Sweet ZZ

Greetings to everyone on this final day of week 4. This week brought a major challenge (and major headache) to me - high temperature. This whole week I had around 30 °C and me living under the roof does make keeping low temperatures in my growroom virtually impossible. My plants though really did not care for my worries. They proved themselves extremly resistant to the higher temperatures, no burned leaftips, no wiltening, not a SINGLE thing that made me think, that they are feeling unhappy (although I must admit all of them are of smaller size compared to other diaries of the same strain I saw, or maybe it's just my paranoia 💩), except for SZZ but we will come to that soon. On tuesday I topped WC at the 6th node and on thursday I transplanted her into her final growing pot (13L), I am happy with the timing I chose, the roots did start to curl around, but I think she was not rootbound. She takes everything like a warrior and I could not wish for a better plant in my first grow. Because of the pot height she is very close to the lights atm and still no sign of lightstress (couple of bright spots on some leafs). Sometimes she slightly closes her top leafs for a couple of hours, but right now I will not make changes to the light setup 💪 Wednesday was the first day I noticed slight yellowing on a single leaf on SZZ and in general she made a rather unhappy impression to me, because all leafs were flopping downwards. My first thought went to stress due to heat but just to make sure I tested the soil (6.2 pH, 0.8 mS/cm). The results were fine👌, so unfortunately there was not much left for me to do, except for increasing her water intake and praying🙏. Her behavior of letting her leafs down continued for the whole rest of the week until friday, until I gave her a bunch of Nitrogen and some Root Complex against stress on thursday (yellowing of the bottom leafes - Nitrogen deficiency ?). The yellowing receded slightly and she started perking up her canopy again, so now at the end of the week I repeated her treatment with some more Nitrogen and Root Complex . To conclude I think she experienced slight nutrition deficiency and maybe slight underwatering which does not mix well with high temperatures. It's very interesting that she seems to take more nutrients and water than WM even though she is smaller. WM did not get as much attention as the other two, but she is holding strong as well and has now outgrown SZZ. She received nutrition on wednesday and is just doing her thing. Now some roots are visable at the bottom of her pot, so I will be moving her to her final pot in a couple of days. She will be topped at the same time. With her I want to mix Mycorrhiza into all the soil she's being transplanted into (with WC I just put Mycorrhiza into the hole she got put into). The rest of the time I spent learning about the different ways of training plants and in the span of a couple of days I changed my mind more than once on how I should continue. This annoyed me so much, that I just threw all my plans out of the window and I plan to just go with the flow. Since all of them are on the smaller side with really small internode distances, I will trim down the inner parts to make some breathing room and reduce the chance of mold. I plan on topping all three of them and maybe I will deviate in their training who knows😶😶. Also rubbing their leafs slightly leaves a citrus, woody smell, I love it Thank you for keeping up with my journey and happy growing 👽👽.