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SamDo Hi, and welcome to my new grow journal!
After two failed grows, I’m really hoping this one turns out better. I made some changes to my setup—most importantly, I moved my grow tent to a new location. I think the old spot wasn’t ideal, and I’m confident this adjustment will help me get stronger results this time.
This round, I’m running a Pineapple Upside Down Cake from Humboldt Seed Company.
The seed popped after just 48 hours directly in coco coir—super encouraging for what’s ahead.
For the start, I’m using a 1‑liter AirPot adapted to work with an AutoPot system. I’ll see how it performs before moving the plant to its final 15‑liter AutoPot setup.
For nutrients, I started simple: 2 ml/L of Voodoo Juice and brought the EC up to 0.4 using FormuleX, all in 0 EC reverse osmosis water. pH is dialed in at 5.8. Hopefully, this isn’t too much for such a young plant—we’ll find out soon enough.
The seedling is in a 70x70x160 cm Mars Hydro grow tent under an OpticLED GMax 300, currently set to blue spectrum only. I’m also keeping a humidity dome over the sprout to maintain high moisture levels around it.
The substrate is coco with a bit of clay pebbles and some perlite. I plan to increase the perlite ratio when transplanting into the 15‑liter pot later.
That’s it for now—we’ll call germination complete. I’ll post an update in a week once she’s been out of the coco for seven days.
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Used method
Directly In Substrate
Germination Method
1
Week 1. Vegetation
2d ago
1/8
5 cm
Height
18 hrs
Light Schedule
30 °C
Day Air Temp
6.0
pH
No Smell
Smell
300 PPM
TDS
50 %
Air Humidity
15 L
Pot Size
40 cm
Lamp Distance
Nutrients 2
Voodoo Juice
2 mll
Formulex
1 mll
SamDo Hi everyone, here’s the update for week 1 after germination. Still growing in the Autopot system with the Airpot. This week was a bit tricky. Temperatures spiked over 30°C, and you can see some heat stress on the leaves—they’re slightly wilted.
Thankfully, today temperatures have dropped back to around 25-26°C, which should help the plant recover.
I also swapped the light. Now I’m using a Core 5000K 54W from OpticLED. It generates much less heat and it’s more than enough for the vegetative stage.
As for the parameters, they’re holding steady: EC at 0.6, pH between 5.8 and 6—all good. I’ll also put the dome back on to avoid uncontrolled heat spikes.
That’s it for this week. See you in the next up.