The Grow Awards 2026 🏆

Northern Lights, 3l Airpot

12
5
614
3y ago
vero18 Light Emitting Diodes/100W
vero18
60x60
60x60
Coco Coir
Custom
Vermiculite
Custom
Indoor
Room Type
3 liters
Pot Size
Start at 10 Week
G
Germination
3y ago
Nutrients 3
CalMag Agent - Canna
CalMag Agent
0.46 mll
CANNA Coco A - Canna
CANNA Coco A
0.23 mll
CANNA Coco B - Canna
CANNA Coco B
0.23 mll
dwcguru Seeds were in small Coco pots and a 100W veg grow light provided heat for better germination (about 15k Lux what is probably too much^^) I also like to use a light source for heating the substrate and run it 24/0 because it prevents the seedlings getting long necks when they stuck their head out of the substrate and coincidentally it is night. I switch to 18/6 about 1-2 days later. On VT2, Lady was transplanted into the 3l Airpot. The other 2 seedlings will be killed because I always have the problem to harvest waaaaaay to much and one plant is enough 😞 I started with a veeery light PH adjusted nutrient solution right away 😊
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Used method
Directly In Substrate
Germination Method
1
Week 1. Vegetation
3y ago
18 hrs
Light Schedule
26 °C
Day Air Temp
6.0
pH
3 liters
Pot Size
Nutrients 3
CalMag Agent - Canna
CalMag Agent
0.46 mll
CANNA Coco A - Canna
CANNA Coco A
0.5 mll
CANNA Coco B - Canna
CANNA Coco B
0.5 mll
dwcguru Little lady is a bit light green but I increased the nutrients a bit and enabled my automatic watering again. Part of automatic watering is a 3d printed self-draining saucer that was especially designes for 3l Airpots to fit on the posts perfectly. It's specialty is that the saucer is slightly shaped like a funnel, so it collects the drain automatically on the outlet. Here is the 3d-model if someone needs it: https://www.thingiverse.com/thing:5341952 The pump for the nutrient solution is a small peristaltic pump that is connected to a relay board on a Raspberry Pi. Also new is a piezo-pump that bubbles my NL reservoir. Not sure if this has any positive effects but work needed was small and it's unhearable silent. So why not 😜
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Grow Questions
dwcguru
dwcgurustarted grow question 3y ago
Can I disable (crappy^^) automatic translations on Growdiaries somewhere? I didn't find anything 😞
Solved
Other. Other
likes
GrowingGrannie
GrowingGrannieanswered grow question 3y ago
I don't think you can disable that feature BUT you can always see the original ...
2
Week 2. Vegetation
3y ago
18 hrs
Light Schedule
26 °C
Day Air Temp
6.0
pH
3 liters
Pot Size
Nutrients 3
CalMag Agent - Canna
CalMag Agent
0.46 mll
CANNA Coco A - Canna
CANNA Coco A
0.69 mll
CANNA Coco B - Canna
CANNA Coco B
0.69 mll
dwcguru Plant ist developing fast and nicely 😊 Switched to a DIY E27 panel with 16 sockets on 50x50. Currently using 8x Philips CorePro @ 6500K. The plant seems to like it 🙏 My current nutrient mix: 10l RO water + 3l tap water + 6ml CalMag (~0,4) + 9ml Canna Coco A + 9ml Canna Coco B (~0.4) + 2.5ml PH-. Total EC of about 0.8
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3
Week 3. Flowering
3y ago
12 hrs
Light Schedule
26 °C
Day Air Temp
6.0
pH
3 liters
Pot Size
Nutrients 3
CalMag Agent - Canna
CalMag Agent
0.46 mll
CANNA Coco A - Canna
CANNA Coco A
1.46 mll
CANNA Coco B - Canna
CANNA Coco B
1.46 mll
dwcguru Plant showed weird deficiencies. Probably I waited to long with increasing the EC. But new leafs are perfectly healthy. Currently running with 10l RO, 3l TW, 6ml CalMag, 19ml Canna Coco A + B + 2ml PH- I switched to 12/12 after 2 weeks. Let's see how it goes
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4
Week 4. Flowering
3y ago
12 hrs
Light Schedule
26 °C
Day Air Temp
6.0
pH
3 liters
Pot Size
Nutrients 3
CalMag Agent - Canna
CalMag Agent
0.46 mll
CANNA Coco A - Canna
CANNA Coco A
1.46 mll
CANNA Coco B - Canna
CANNA Coco B
1.46 mll
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5
Week 5. Flowering
3y ago
12 hrs
Light Schedule
28 °C
Day Air Temp
6.0
pH
3 liters
Pot Size
Nutrients 3
CalMag Agent - Canna
CalMag Agent
0.42 mll
CANNA Coco A - Canna
CANNA Coco A
1.57 mll
CANNA Coco B - Canna
CANNA Coco B
1.56 mll
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6
Week 6. Flowering
3y ago
12 hrs
Light Schedule
28 °C
Day Air Temp
6.0
pH
3 liters
Pot Size
Nutrients 3
CalMag Agent - Canna
CalMag Agent
0.42 mll
CANNA Coco A - Canna
CANNA Coco A
1.57 mll
CANNA Coco B - Canna
CANNA Coco B
1.56 mll
dwcguru Lady stretching a lot 🤯 And she is consuming about 1.5 liters daily! I noticed a bit of purpel leaves, but ... 🤷‍♂️
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7
Week 7. Flowering
3y ago
12 hrs
Light Schedule
28 °C
Day Air Temp
6.0
pH
3 liters
Pot Size
Nutrients 3
CalMag Agent - Canna
CalMag Agent
0.42 mll
CANNA Coco A - Canna
CANNA Coco A
1.57 mll
CANNA Coco B - Canna
CANNA Coco B
1.56 mll
dwcguru Stretch stopped. Lady is perfectly halthy 😍 EC is about 1.2
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8
Week 8. Flowering
3y ago
12 hrs
Light Schedule
28 °C
Day Air Temp
6.0
pH
3 liters
Pot Size
Nutrients 3
CalMag Agent - Canna
CalMag Agent
0.42 mll
CANNA Coco A - Canna
CANNA Coco A
1.57 mll
CANNA Coco B - Canna
CANNA Coco B
1.56 mll
dwcguru Not much to say ... Very smooth ride through the flowering. 💪
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9
Week 9. Flowering
3y ago
12 hrs
Light Schedule
28 °C
Day Air Temp
6.0
pH
3 liters
Pot Size
Nutrients 3
CalMag Agent - Canna
CalMag Agent
0.42 mll
CANNA Coco A - Canna
CANNA Coco A
1.14 mll
CANNA Coco B - Canna
CANNA Coco B
1.14 mll
dwcguru Reduced EC from 1.2 to 1.0. There was some salt builtup (drain EC 2.0). I think I missed to reduce the nutrients after stretch stopped (as always^^). Besides of this, Lady looks fantastic and buds are nicely expanding from day to day 😍 I see a (dry) 100g+ harvest coming with a single plant ... 3l Airpot + automatic watering is a beast! 😋
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10
Week 10. Flowering
3y ago
12 hrs
Light Schedule
28 °C
Day Air Temp
6.0
pH
3 liters
Pot Size
Nutrients 1
CalMag Agent - Canna
CalMag Agent
0.5 mll
dwcguru Stopped feeding Canna Coco A + B. Only tap water + RO water + CalMag. I think 15 days to go.
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