Photoperiod 3x3, LED, 9xGrüne Hessin

[Rizzrack]

It's day 26 of flowering and my garden is still looking good. RH is now at a stable 50% and the buds are slowly getting bigger. I did however spot a few rusty spots on some leaves of pretty much all plants. They developed while I was gone over the holidays and the medium got a bit dry, so I don't know if that's what caused it. Looks like a calcium deficiency to me.. I checked the pH of the nutrient solution I'm watering with and it's at 6,0, but as far as I know, pH shouldn't really be a problem when using organic nutrients anyway, right? I upped the nutrient dosage a bit, let's see what happens. If anyone has an idea about what could be the problem I would greatly appreciate any advice.

NEW PHOTOS

 

[tobe]

It's day 26 of flowering and my garden is still looking good. RH is now at a stable 50% and the buds are slowly getting bigger. I did however spot a few rusty spots on some leaves of pretty much all plants. They developed while I was gone over the holidays and the medium got a bit dry, so I don't know if that's what caused it. Looks like a calcium deficiency to me.. I checked the pH of the nutrient solution I'm watering with and it's at 6,0, but as far as I know, pH shouldn't really be a problem when using organic nutrients anyway, right? I upped the nutrient dosage a bit, let's see what happens. If anyone has an idea about what could be the problem I would greatly appreciate any advice.

NEW PHOTOS

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Beautiful my friend, my Grüne Hessin died , I hope my friend got the mother plant alive to cut some more clones.

Happy growing
cu tobe

 

[Rizzrack]

It's day 31 of flower. Unfortunately the deficiency symptoms seem to have spread a fair bit. However I don't know if upping the nutrient dose might have a delayed effect on that, so I guess I'll just leave everything as it is right now and keep a close eye on the plants. The affected leaves are all in the upper part of the plants, and nearly all of them show them in some degree.
Still, if anyone knows how I could react to these problems I'd be very grateful. I already thought about top dressing with a bit of dolomite lime to play around with the pH levels a bit.
Anyway, here are the photos.

 

[Rizzrack]

Beautiful my friend, my Grüne Hessin died , I hope my friend got the mother plant alive to cut some more clones.

Happy growing
cu tobe

Shit, sorry to hear that.

 

[Rizzrack]

Buds are getting fatter, unfortunately the deficiency got a bit worse though.. I used dolomite lime as top dressing, I thought it might help to raise the pH a bit if that's even the problem...
Anyway, NEW PHOTOS! Got some closeups of the deficient leaves aswell. All plants show signs of the same deficiency. The smallest plant looks the healthiest though.

Day 38 of flower:

 

[Site]

Looks a lot like a calcium issue to me...not fed any mag/cal?

 

[KonopCh]

Bump your Ca/Mg.

 

[Rizzrack]

Looks a lot like a calcium issue to me...not fed any mag/cal?

I just used the BioBizz line, no extra mag/cal except for the dolomite lime I used as top dressing a few days ago, 2 tablespoons per 11 litre pot. Do you think I should still get a mag/cal supplement? I'm a bit concerned about the soils microbe life.

 

[Site]

yea i had massive problems as I didnt want to use mag/cal with my RO water but ended up using biobizz bloom alongside the PM mag/cal and it seemed to be fine...had no issues, i was also really paranoid thinking it was a 'chemical' and would ruin my soils microbelife!

 

[Rizzrack]

Hey guys, been a long time since the last update. I went to the Growshop to get some Mag/Cal, but the vendor insisted on me trying something organic. She basically said I'd ruin my quality if I went non-organic now, so she gave me some alpaca wool which I top dressed and covered up with a bit of substrate. The deficiencies did definitely spread, but I think it stopped a few days ago, so Calcium in the wool might be working its magic now. I also bumped up the Alg-a-mic and Bio Heaven a bit.
Buds got a lot bigger since the last time I updated and even under the canopy there's loads of medium to small budlets.
It's day 54 of flower right now, two more weeks to go maybe?