Growbox Diary – Week 1: Banana Purple Punch Auto (FastBuds)
First entry! I just put a Banana Purple Punch Auto seed in water. This is just a test to see how a plant reacts to slightly higher-than-ideal temperatures. I’ll be planting two more FastBuds seeds in winter, when the room is cooler (around 21–22°C) and the growbox can be managed more optimally.
The growbox is 60×50×104 cm, enough space for two autoflowers in 6.5 L pots with some LST. Lighting is the Spider Farmer SF-1000D LED on adjustable pulleys, high enough to leave space for airflow, but low enough so the plant will get plenty of light.
Ventilation: the 130 m³/h exhaust actively removes hot and humid air directly out the window. Air comes in passively from the room. Inside the box, a USB clip fan is running at maximum, pointing toward the extractor, to avoid stagnant zones. During a 1–2 hour test without plants, with the lamp on and fan at max, the box temperature reached 32°C. This is manageable for a test but higher than ideal for real growth.
The room itself, with AC on, stays around 26°C. Without AC, in late August, it could easily rise to 28–28.5°C, creating a very stressful environment for the plant. So, the AC is necessary—for me and for stability of the setup.
Substrate is BioBizz Light Mix with 25% perlite, perfect for aeration and drainage. Nutrients are Fish-Mix, Grow, and Bloom, with pH around 6.2–6.5. Dosages will be gradual to avoid stress.
In a few days, this seedling will be transferred to the 60×60×180 cm growbox, where the temperature will drop a few degrees, allowing for better management and growth conditions.
For now, this little seed is just a test—let’s see how she handles the slightly hot environment. Excited to watch her grow and keep this diary updated!