Light: MH cooltube set to 300w (was 450w when problems began)
Medium: Canna Coco w/ perlite
Nutrients: Emerald Harvest 3 part (click for feed chart) + CalMag (click for feed chart)
Nutrient and water pH: 5.8
Medium pH: N/A
Temperature: 70-72F (21-22C)
RH: 45-55%
Strain: Fast Buds Feminized Auto Grapefruit
Age: 12 days (problems began at 10 days)
This occurred approximately 12 hours after her first full feed of (6-3-2-5mL/Gal [Grow-Micro-Bloom-CalMag]).
The morning of the feed:
12 hours later:
Looked like Calcium deficiency to me with a very sight nutrient burn on a few parts of the tips. Also some clawing showing too much Nitrogen.
I "flushed" it out with a gallon of 7mL/Gal of the CalMag that night.
The next morning there was a tiny bit of new growth with no additional burn indicating to me the problem should have been resolved and that it wasn't stunted too much.
(look at the very center growth compared to last pic).
Now, 24 hours later, without ANY additional water/feed, there is both new growth AND new damage.
The other 3 strains I have (Fast Buds GSC & Rhyno Rider, and Seedsman Kush Auto) are all fine for the most part with almost no signs of stress at all (there are signs of a bit too much light which is why I reduced it).
What do I do?
I was planning on feeding them tomorrow with:
Grapefruit: 4-3-1-6
Everything else: 6-3-2-6
Medium: Canna Coco w/ perlite
Nutrients: Emerald Harvest 3 part (click for feed chart) + CalMag (click for feed chart)
Nutrient and water pH: 5.8
Medium pH: N/A
Temperature: 70-72F (21-22C)
RH: 45-55%
Strain: Fast Buds Feminized Auto Grapefruit
Age: 12 days (problems began at 10 days)
This occurred approximately 12 hours after her first full feed of (6-3-2-5mL/Gal [Grow-Micro-Bloom-CalMag]).
The morning of the feed:
12 hours later:
Looked like Calcium deficiency to me with a very sight nutrient burn on a few parts of the tips. Also some clawing showing too much Nitrogen.
I "flushed" it out with a gallon of 7mL/Gal of the CalMag that night.
The next morning there was a tiny bit of new growth with no additional burn indicating to me the problem should have been resolved and that it wasn't stunted too much.
(look at the very center growth compared to last pic).
Now, 24 hours later, without ANY additional water/feed, there is both new growth AND new damage.
The other 3 strains I have (Fast Buds GSC & Rhyno Rider, and Seedsman Kush Auto) are all fine for the most part with almost no signs of stress at all (there are signs of a bit too much light which is why I reduced it).
What do I do?
I was planning on feeding them tomorrow with:
Grapefruit: 4-3-1-6
Everything else: 6-3-2-6