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Xabii Did some changes to the setup namely changing to upper box to a smaller one for easy access to the reservoir, moving the air exhaust outside to gain some more space, 4 tubes instead of 2 to the top for a more even watering, light protection around the cubes to prevent algae, added a T piece to the pump with quick connect so that I can easily plug in a hose and empty + refill the reservoir.
Also calibrated ALL probes at the beginning of this grow, including the EC probe which I did not last time.
Added a smart plug to the air exhaust that activates when RH is higher than 65% it goes on and lower than 60% it turns off, will use that for the first couple weeks to raise RH inside the tent because I have a 120mm fan blowing through the reservoir to cool it down which increases RH.
No Worries early on because the exhaust being off for a while is not bad since the plant does not smell yet and doesn't need as much fresh air as later on.
Soaked the seed in water for 23 Hours, nothing showed yet, placed it in to the Rockwool.
More Info in coming soon.
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Used method
Rockwool Cube
Germination Method
1
Week 1. Vegetation
2mo ago
1/4
5 cm
Height
18 hrs
Light Schedule
24 °C
Day Air Temp
6.0
pH
No Smell
Smell
600 PPM
TDS
61 %
Air Humidity
21 °C
Solution Temp
24 °C
Night Air Temp
50 cm
Lamp Distance
Nutrients 5
Kristalon Blue
1 mll
Calcinit
1 mll
GrowClean
1 mll
Xabii Plant is doing good, average to good growth for 7 days.
Setup works just fine, did water twice with a cup directly in the middle, probably not needed but better safe than sorry.
Switched from 24/0 to 18/6.
Lost timelapse footage of day 6.
Values are average of the day.
DATE - EC(us/cm)
20250524 1207
20250525 1172
20250526 1174
20250527 1175
20250528 1214
20250529 1214
20250530 1202
DATE - PH
20250524 5.88
20250525 6.01
20250526 6.02
20250527 6.03
20250528 6.05
20250529 6.07
20250530 6.06
DATE - ORP (mV)
20250524 190
20250525 201
20250526 203
20250527 195
20250528 158
20250529 136
20250530 144
DATE - °C - RH% (Tent Temp/RH)
20250524 23.8 60
20250525 24.5 59
20250526 24.2 62
20250527 23.6 63
20250528 23.3 62
20250529 23.3 61
20250530 24.6 62
DATE - °C (Reservoir)
20250524 20.9
20250525 21.8
20250526 22.3
20250527 22.1
20250528 21.4
20250529 21.4
20250530 22.3
DATE - CF
20250524 12.07
20250525 11.72
20250526 11.74
20250527 11.75
20250528 12.14
20250529 12.14
20250530 12.02
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2
Week 2. Vegetation
1mo ago
1/8
6 cm
Height
18 hrs
Light Schedule
24 °C
Day Air Temp
6.0
pH
No Smell
Smell
600 PPM
TDS
61 %
Air Humidity
22 °C
Solution Temp
24 °C
Night Air Temp
50 cm
Lamp Distance
Nutrients 5
Kristalon Blue
1 mll
Calcinit
1 mll
GrowClean
1 mll
Xabii Plant is doing average to good for 14 days.
Did not increase much in height but expanded in width and shot some side nodes.
Did top her on day 14.
Found a few Thrips so I ordered predator mites, can never get rid of these due to surrounding trees next to my place.
Values are average of the day.
DATE - EC(us/cm)
20250531 1221
20250601 1214
20250602 1237
20250603 1266
20250604 1253
20250605 1271
20250606 1292
DATE - PH
20250531 6.08
20250601 6.07
20250602 6.10
20250603 5.99
20250604 5.97
20250605 5.99
20250606 5.99
DATE - ORP (mV)
20250531 126
20250601 133
20250602 169
20250603 103
20250604 96
20250605 90
20250606 87
DATE - °C - RH% (Tent Temp/RH)
20250531 23.8 63
20250601 25.4 61
20250602 23.6 60
20250603 24.1 60
20250604 24.5 61
20250605 24.7 62
20250606 24.3 59
DATE - °C (Reservoir)
20250531 22.1
20250601 22.9
20250602 22.0
20250603 21.8
20250604 22.7
20250605 22.5
20250606 22.1
DATE - CF
20250531 12.21
20250601 12.14
20250602 12.37
20250603 12.65
20250604 12.53
20250605 12.71
20250606 12.92
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Used techniques
Topping
Technique
Defoliation
Technique
3
Week 3. Vegetation
1mo ago
1/6
9 cm
Height
18 hrs
Light Schedule
25 °C
Day Air Temp
6.0
pH
No Smell
Smell
60 %
Air Humidity
22 °C
Solution Temp
25 °C
Night Air Temp
50 cm
Lamp Distance
Nutrients 6
Kristalon Blue
1 mll
Calcinit
1 mll
GrowClean
1 mll
Xabii Plant is doing OK? for 21 days?
I am a little unsure because she is simply not stretching but growing good on the side notes.
After some discussion on /r/Mephheads I came to the conclusion that I will try to lower the DLI so that the plant stretches because for now there are way to many nodes way to close together.
Received my predator mites and added them (the pouch).
Increased EC at the end of the week with Universol (high in P) and added some water to the reservoir.
Heatwave is coming so next week will be hot in the tent, no way around that.
Values are average of the day.
DATE - EC(us/cm)
20250607 1317
20250608 1329
20250609 1321
20250610 1306
20250611 1319
20250612 1397
20250613 1483
DATE - PH
20250607 5.99
20250608 5.97
20250609 6.05
20250610 6.13
20250611 6.13
20250612 6.09
20250613 5.95
DATE - ORP (mV)
20250607 110
20250608 113
20250609 93
20250610 83
20250611 75
20250612 61
20250613 60
DATE - °C - RH% (Tent Temp/RH)
20250607 24.8 60
20250608 24.8 60
20250609 24.3 59
20250610 24.8 60
20250611 25.1 59
20250612 24.7 53
20250613 25.3 62
DATE - °C (Reservoir)
20250607 22.0
20250608 21.9
20250609 22.2
20250610 22.4
20250611 22.6
20250612 21.5
20250613 24.2
DATE - CF
20250607 13.17
20250608 13.29
20250609 13.21
20250610 13.06
20250611 13.19
20250612 13.97
20250613 14.84
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4
Week 4. Vegetation
1mo ago
1/7
14 cm
Height
18 hrs
Light Schedule
25 °C
Day Air Temp
6.0
pH
No Smell
Smell
750 PPM
TDS
50 %
Air Humidity
22 °C
Solution Temp
25 °C
Night Air Temp
50 cm
Lamp Distance
Nutrients 2
Kristalon Blue
1 mll
Calcinit
1 mll
Xabii 28 days huh... I don't know what to think here right now.
The plant looks completely healthy, no over or underwatering symptoms, no nutrient deficiency or excess symptoms, completely healthy in my opinion.
The plant is growing as seen in timelapse, would not say it is stunted.
It is growing a shit ton of side nodes but nothing is stretching and I don't know why.
I did see some stretching at the end of the week, either the plant will stretch drastically over the next week or I will end up with a Basketball-sized XXXL Bud.
To be sure I re-calibrated all probes and they were fine before calibrating so no error on that side.
Mixed a new batch of nutrient solutions and did a full swap of the reservoir.
Added support bars and a net.
Values are average of the day.
DATE - EC(us/cm)
20250614 1508
20250615 1555
20250616 1621
20250617 1595
20250618 1540
20250619 1516
20250620 1531
DATE - PH
20250614 5.91
20250615 5.93
20250616 5.96
20250617 6.00
20250618 6.10
20250619 6.10
20250620 5.72
DATE - ORP (mV)
20250614 65
20250615 50
20250616 40
20250617 51
20250618 63
20250619 80
20250620 43
DATE - °C - RH% (Tent Temp/RH)
20250614 26.9 54
20250615 25.5 49
20250616 24.1 51
20250617 25.3 51
20250618 25.8 52
20250619 26.1 49
20250620 23.8 45
DATE - °C (Reservoir)
20250614 24.1
20250615 23.1
20250616 21.6
20250617 22.4
20250618 23.1
20250619 22.9
20250620 21.1
DATE - CF
20250614 15.08
20250615 15.55
20250616 16.21
20250617 15.95
20250618 15.40
20250619 15.16
20250620 15.31
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5
Week 5. Flowering
22d ago
1/7
14 cm
Height
20 hrs
Light Schedule
25 °C
Day Air Temp
5.7
pH
Weak
Smell
750 PPM
TDS
50 %
Air Humidity
22 °C
Solution Temp
25 °C
Night Air Temp
53 cm
Lamp Distance
Nutrients 2
Kristalon Blue
1 mll
Calcinit
1 mll
Xabii 35 days!
The plant finally started to stretch, relief!
Was really worried I got a small plant again but am now at the end of week 5 thinking that it will go mid to big :)
Tied the plant down multiple times this week and defoliated quite often, the plant did not seem to mind.
A slight smell is coming.
Marked this week as bloom because it is in early bloom.
Increased light intensity and light cycle mid week, 18/6 - 20/4.
Overall a very good week.
Values are average of the day.
DATE - EC(us/cm)
20250621 1456
20250622 1450
20250623 1499
20250624 1558
20250625 1518
20250626 1444
20250627 1488
DATE - PH
20250621 5.72
20250622 5.73
20250623 5.68
20250624 5.65
20250625 5.72
20250626 5.83
20250627 5.72
DATE - ORP (mV)
20250621 45
20250622 36
20250623 26
20250624 19
20250625 19
20250626 21
20250627 11
DATE - °C - RH% (Tent Temp/RH)
20250621 25.7 44
20250622 27.1 44
20250623 25.4 44
20250624 22.9 49
20250625 25.4 56
20250626 26.1 57
20250627 25.0 50
DATE - °C (Reservoir)
20250621 22.1
20250622 23.2
20250623 21.9
20250624 19.8
20250625 21.0
20250626 22.5
20250627 21.5
DATE - CF
20250621 14.56
20250622 14.49
20250623 14.99
20250624 15.58
20250625 15.18
20250626 14.44
20250627 14.88
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Used techniques
ScrOG
Technique
Defoliation
Technique
6
Week 6. Flowering
13d ago
1/9
19 cm
Height
20 hrs
Light Schedule
27 °C
Day Air Temp
6.0
pH
Normal
Smell
700 PPM
TDS
53 %
Air Humidity
23 °C
Solution Temp
27 °C
Night Air Temp
46 cm
Lamp Distance
Nutrients 3
Calcinit
1 mll
Kristalon Orange
1 mll
GrowClean
1 mll
Xabii 42 days!
Sadly did loose footage of 1,5 days.
Did a reservoir swap and am now using Yara Kristalon Orange instead of Blue.
Orange NPK: 6:12:36.
Lowered EC after some research on rockwool, guess I was feeding way to high all the time, as it seems salts accumulate in rockwool even when you do long irrigations to basically flush it every time.
Will aim for 1.2-1.3EC from now on, a lot lower than in my previous NFT setup.
The plant is doing good, some slight tip burn, took the heatwave like a champ.
Some branches are stretching, some not, bit it will get bigger for sure (writing this 2 days in to the next week).
Did quite some defoliation.
Smell is coming in for sure, attached the Charcoal filter this week, previously without because not needed :)
Overall not a monster of a plant but not bad either, good average?
Values are average of the day.
DATE - EC(us/cm)
20250628 1405
20250629 1391
20250630 1454
20250701 1531
20250702 1519
20250703 1427
20250704 1336
DATE - PH
20250628 5.87
20250629 5.74
20250630 5.84
20250701 6.20
20250702 6.03
20250703 6.12
20250704 5.82
DATE - ORP (mV)
20250628 121
20250629 18
20250630 51
20250701 -41
20250702 -41
20250703 -30
20250704 -12
DATE - °C - RH% (Tent Temp/RH)
20250628 25.7 59
20250629 26.4 61
20250630 26.9 57
20250701 27.5 50
20250702 29.0 50
20250703 25.4 51
20250704 25.3 44
DATE - °C (Reservoir)
20250628 22.3
20250629 23.3
20250630 22.7
20250701 22.8
20250702 24.2
20250703 23.1
20250704 22.3
DATE - CF
20250628 14.05
20250629 13.91
20250630 14.54
20250701 15.31
20250702 15.19
20250703 14.27
20250704 13.36
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Used techniques
ScrOG
Technique
Defoliation
Technique
7
Week 7. Flowering
7d ago
1/7
23 cm
Height
20 hrs
Light Schedule
25 °C
Day Air Temp
6.0
pH
Normal
Smell
700 PPM
TDS
54 %
Air Humidity
22 °C
Solution Temp
25 °C
Night Air Temp
46 cm
Lamp Distance
Nutrients 5
Calcinit
1 mll
Kristalon Orange
1 mll
GrowClean
1 mll
Xabii 49 Days!
Lost a day of timelapse footage, found a temporary fix tho, should not happen again.
The plant stretched a little and is full on on flower.
This will most likely end up as a single big bloop of bud again, sadly did not stretch as much as I liked it to be.
Overall a good week.
Spoiler: added lights to the bottom to get more light inside the plant at the first day of week 8, more on that next week.
Values are average of the day.
DATE - EC(us/cm)
20250705 1373
20250706 1362
20250707 1346
20250708 1378
20250709 1333
20250710 1331
20250711 1353
DATE - PH
20250705 5.67
20250706 5.67
20250707 5.90
20250708 5.95
20250709 6.17
20250710 6.15
20250711 6.13
DATE - ORP (mV)
20250705 -8
20250706 62
20250707 19
20250708 43
20250709 21
20250710 -1
20250711 -4
DATE - °C - RH% (Tent Temp/RH)
20250705 24.8 46
20250706 25.1 55
20250707 24.7 59
20250708 23.8 52
20250709 24.2 56
20250710 24.8 52
20250711 24.1 60
DATE - °C (Reservoir)
20250705 22.1
20250706 22.7
20250707 22.5
20250708 21.4
20250709 21.8
20250710 22.3
20250711 22.4
DATE - CF
20250705 13.73
20250706 13.62
20250707 13.46
20250708 13.78
20250709 13.33
20250710 13.31
20250711 13.53