tom420
Active Member
Hello cannabis experts!
This is my first post on this forum (or any forum for that matter). I have read countless posts here educating myself and trying to go through my first ever grow - it's been great guidance and help. However today I came across a problem for which I just cannot find an answer. That's why the post.
It's my first ever grow. Here are some details:
Strain: Skunk #1 Auto feminized from White Label Seeds
Medium: Canna Coco Pro 70% / Perlite 30% with layers of hydroton on the bottom and top
Container: 11 liter smart pot, hand watering
Lights: Mars Hydro Reflector 96 (183W draw) and COB LED with 90 deg lens (125W draw)
Grow tent: 3' x 4'
Other equipment:
- Dehumidifier in the tent,
- Carbon filter and outtake fan 200cfm
- 2 mixing fans in the tent
- PH, EC, temp and humidity meters
I am growing just one cannabis plant, however I have 3 super-hot pepper plants in the tent as well. I actually treated these peppers as a kind of a growing exercise before planting cannabis. Made all sorts of mistakes with these peppers but now they are growing and fruiting so nicely I want to keep them! Anyways ... back to my cannabis girl.
It's 48 days from germination. Light schedule is 18/6. Temperature in the tent is below 79F during lights on and above 66F with light off. RH was at 60% during first weeks and is now at 45-55%.
On day 15 I have topped the plant and LST'ed slightly few days later hoping this will give me a flat canopy. Plant bushed out like crazy and I have been trimming some fan leaves, but not too many. I am not going to trim any more as it seems the majority of growers advise against trimming auto strains (feel free to give your advice based on the pictures below).
I am watering with RO water + Advanced Nutrients Sensi Cal-Mag Xtra and GHE Flora Series nutrients. PH'ed to 5.5 - 5.9. Started with 400ppm increasing gradually to 600ppm in the last days.
I never let the coco dry completely. I've been watering once daily until recently, but after flowering started my girl tended to droop slightly few hours before daily watering so I have increased to twice daily - 2 liters an hour after lights on and 3 liters 6 hours before lights out. I am feeding with every watering and always water to 30% run-off.
My Skunk girl has been growing quite nicely but today I have noticed brown spots on some leaves. Not too many leaves are affected, perhaps 5 or 6, but I'm afraid this might spread quickly. These are mostly leaves on the top of the canopy. Please, check out the photos below.
I've been trying to diagnose it but could only find some very conflicting information. I am leaning towards Manganese or Cal-Mag deficiency, but perhaps it is a nute burn. I don't want to make it worse by making a wrong call here.
What I have noticed is that my run-off PPM has been quite low recently, while PH went up a bit. During the last days I was watering with 600 PPM @ 5.8 PH and my run-off was at 300 PPM @ 6.1 PH. Would that mean that my girl is hungry for more nutes and I should feed more? 800 PPM perhaps, for starters?
Any and all advice is more than welcome!
Cheers!
Here is my setup:
Here is my bushy Skunk #1:
What are these spots?
And one of the lower leaves has this:
This is my first post on this forum (or any forum for that matter). I have read countless posts here educating myself and trying to go through my first ever grow - it's been great guidance and help. However today I came across a problem for which I just cannot find an answer. That's why the post.
It's my first ever grow. Here are some details:
Strain: Skunk #1 Auto feminized from White Label Seeds
Medium: Canna Coco Pro 70% / Perlite 30% with layers of hydroton on the bottom and top
Container: 11 liter smart pot, hand watering
Lights: Mars Hydro Reflector 96 (183W draw) and COB LED with 90 deg lens (125W draw)
Grow tent: 3' x 4'
Other equipment:
- Dehumidifier in the tent,
- Carbon filter and outtake fan 200cfm
- 2 mixing fans in the tent
- PH, EC, temp and humidity meters
I am growing just one cannabis plant, however I have 3 super-hot pepper plants in the tent as well. I actually treated these peppers as a kind of a growing exercise before planting cannabis. Made all sorts of mistakes with these peppers but now they are growing and fruiting so nicely I want to keep them! Anyways ... back to my cannabis girl.
It's 48 days from germination. Light schedule is 18/6. Temperature in the tent is below 79F during lights on and above 66F with light off. RH was at 60% during first weeks and is now at 45-55%.
On day 15 I have topped the plant and LST'ed slightly few days later hoping this will give me a flat canopy. Plant bushed out like crazy and I have been trimming some fan leaves, but not too many. I am not going to trim any more as it seems the majority of growers advise against trimming auto strains (feel free to give your advice based on the pictures below).
I am watering with RO water + Advanced Nutrients Sensi Cal-Mag Xtra and GHE Flora Series nutrients. PH'ed to 5.5 - 5.9. Started with 400ppm increasing gradually to 600ppm in the last days.
I never let the coco dry completely. I've been watering once daily until recently, but after flowering started my girl tended to droop slightly few hours before daily watering so I have increased to twice daily - 2 liters an hour after lights on and 3 liters 6 hours before lights out. I am feeding with every watering and always water to 30% run-off.
My Skunk girl has been growing quite nicely but today I have noticed brown spots on some leaves. Not too many leaves are affected, perhaps 5 or 6, but I'm afraid this might spread quickly. These are mostly leaves on the top of the canopy. Please, check out the photos below.
I've been trying to diagnose it but could only find some very conflicting information. I am leaning towards Manganese or Cal-Mag deficiency, but perhaps it is a nute burn. I don't want to make it worse by making a wrong call here.
What I have noticed is that my run-off PPM has been quite low recently, while PH went up a bit. During the last days I was watering with 600 PPM @ 5.8 PH and my run-off was at 300 PPM @ 6.1 PH. Would that mean that my girl is hungry for more nutes and I should feed more? 800 PPM perhaps, for starters?
Any and all advice is more than welcome!
Cheers!
Here is my setup:
Here is my bushy Skunk #1:
What are these spots?
And one of the lower leaves has this:
Plant is looking rather nice, see picture below.
