Alright guys, welcome back — week 7 of veg with the Pineapple Upside Down Cake from Humboldt.
This week feels like a big win compared to the last one. The adjustments I made finally paid off. Cutting off the extractor really helped bring humidity back up, and that gave the plant the push it needed to get back into an optimal growth rhythm.
I also realized that adding an extra light before was too much — way too much PPFD. So now I’ve gone back to a more balanced setup with a 54W COB at 5000K. The environment feels much more stable, uniform, and the plant clearly loves it.
Nutrients are still straight Athena — Grow A, Grow B, CalMag, and Cleanse. EC is holding around 1.4. One thing I’ve noticed is a slight drift between what’s in the reservoir and what ends up in the saucer. That’s why I keep the res around pH 5.5–5.6. Once it drains through to the pot, it tends to rise, landing closer to 5.8 or even 6.0. It’s a bit tricky to manage, but the idea is to aim lower in the res so that the root zone ends up right where it should be.
So, the main challenge for the upcoming week is to keep that pH steady in the sweet spot — ideally buffered around 5.8 to 6.0. If I can lock that in, the plant should keep pushing strong.
For now, everything looks good. I’m happy with the comeback this week — definitely a victory. Let’s see how it evolves next week. Catch you then!