Barney's Farm - Wedding Cake - Pineapple Express - My 3rd grow and first grow diary

First Grow Diary! This will be my 3rd grow. My 2nd grow is still finishing up at the moment so i'm using a no name indoor greenhouse with a cheap ViparSpectre P600 until I can move the plants into my main Tent. Although this is a temporary and cheap setup it seems to be working quite well. Humidity is consistent around 70%-80% and temperature around 25°C during the day and around 22°C-23°C during the night. When I started my first grow I was a bit worried about the environment since my tent is in the basement which is quite humid (~80%) and cold (~18°C). I was able to get the humidity down to ~50%-60% (depending on the weather) inside my main tent by using a dehumidifier next to the tent. At first, I had it inside the tent, but that caused the temperature to rise up to 32°C peak which in turn resulted in my exhaust fan instantly exhausting the dehumidified air. The seeds were germinated in Biobizz Light Mix and transplanted to the current 3.5L pot about a week ago. I believe i transplanted too early into the AllMix since the oldest leaves of the Pineapple Express are showing severe signs of nutrient burn. I'd like to top these plants but i'm unsure about the timing. The plants look like they are ready to be topped but i feel like its a bit too early. I will probably wait a few more days before i top them. Edit: Topped on 07.09.2024