Jacks_Pot Here I am again with the third round of this year.
I'm going back to two familiar strains. The breeder is KeraSeeds.
The first strain is LA Widow, and the second strain is Tangerine Kush.
On 21/07/26, I sowed three seeds of each strain in seedling soil that had been pre-watered with Rhizotonic
(1.6 ml per 600 ml of tap water). The 0.4 L pots were placed on a heat mat set to 26°C (79°F) using a thermostat.
On 24/07/26, all three Tangerine Kush seeds had germinated, along with 2 out of 3 LA Widow seeds.
Unfortunately, the third LA Widow seed never sprouted.
25/07/26 marks Day 1 of the vegetative stage.
This time, I'll only be vegging for 4 weeks instead of 5, as they tend to get too big otherwise.
I'll be using the Plagron nutrient line again
(except during the first week, when I'll use Rhizotonic and Canna Start by Canna).
The lighting is still provided by my COB LEDs, and apart from that, everything else remains the same.
C u next week! 👋
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Used method
Directly In Substrate
Germination Method
1
Week 1. Vegetation
1d ago
1/6
18 hrs
Light Schedule
29 °C
Day Air Temp
6.0
pH
450 PPM
TDS
53 %
Air Humidity
23 °C
Solution Temp
23 °C
Substrate Temp
26 °C
Night Air Temp
0.4 liters
Pot Size
0.03 liters
Watering Volume
45 cm
Lamp Distance
Nutrients 2
CANNA RHIZOTONIC
2 mll
CANNA Start
2 mll
Jacks_Pot The first week went by without any issues.
Just five healthy seedlings that were off to a great start.
This was their feeding schedule during the first week:
Day 1 – Dry
Day 2 – Added 1 ml of Rhizotonic and 1 ml of Canna Start to 500 ml of tap water
(EC 0.93 – pH 6.0 – 22.3°C / 72.1°F). Each seedling received 35 ml.
Day 3 – Dry
Day 4 – Same as Day 2. 45 ml per seedling.
Day 5 – Same as Day 2. 60 ml per seedling.
Day 6 – Dry
Day 7 – Same as Day 2. 60 ml per seedling.
The humidifier was not connected yet.
only had a fan running to give the seedlings a gentle breeze.
The COB LED was hanging 45 cm (18 inches) above the canopy at 50 watts,
providing a DLI of 22 and a PPFD of 340 µmol/m²/s.
This seemed to be just right, as the seedlings appeared to stretch less than they did in previous grows.
Temperatures ranged from 25.9°C to 29.0°C (78.6–84.2°F), while the relative humidity stayed between 44% and 62%.
C u next week! 👏
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2
Week 2. Vegetation
1d ago
1/8
18 hrs
Light Schedule
29 °C
Day Air Temp
6.0
pH
450 PPM
TDS
50 %
Air Humidity
23 °C
Solution Temp
23 °C
Substrate Temp
24 °C
Night Air Temp
14 liters
Pot Size
0.3 liters
Watering Volume
48 cm
Lamp Distance
Nutrients 5
Power Roots
1 mll
Pure Zym
1 mll
Terra Grow
1 mll
Jacks_Pot The seedlings progressed very smoothly, as by day 13 I was already able
to transplant them into the 14-liter air pots.
The pots were pre-watered with Power Roots, Pure Zym and nematodes against fungus gnats.
I removed the smallest Tangerine Kush plant because, as always, I’m going for four plants.
The large heat mat replaced the small one and was set to 24°C.
It won’t have much work to do over the coming days, as temperatures are going to be warm enough.
This is what they received this week:
Day 8 – Dry
Day 9 – To 300 ml of tap water, I added 1.2 ml Fish Force, 0.05 ml Silic Rock and 0.05 ml CalMag.
(EC 1.0 – pH 6.1 – 23.2°C) Each plant received 60 ml.
Day 10 – To 400 ml of tap water, I added 0.4 ml Power Roots, 0.4 ml Pure Zym, 0.3 ml Terra Grow,
0.05 ml Silic Rock and 0.05 ml CalMag. (EC 1.0 – pH 6.1 – 21.8°C) Each plant received 70 ml.
Day 11 – Dry
Day 12 – To 500 ml of tap water, I added 0.5 ml Power Roots, 0.5 ml Pure Zym, 0.5 ml Terra Grow,
0.1 ml Silic Rock and 0.1 ml CalMag. (EC 1.07 – pH 6.0 – 23.4°C) Each plant received 80 ml.
Day 13 – Transplant day
Day 14 – Dry
Starting next week, they will once again receive a weekly spray with Vita Race.
The COB light was increased to 60 watts at a distance of 43 cm.
This resulted in a DLI of 24.3 / PPFD 375.
On day 13, the second COB was added to the tent.
Both COBs were positioned at 48 cm with a total power of 130 watts.
This resulted in a DLI of 26 / PPFD 401.
Temperatures fluctuated between 24.2°C and 28.7°C. Relative humidity remained between 42% and 57%.
C u next week! 👋