3 week flower issue

Armyofsprout

Armyofsprout

Well-Known Member
Everything was going good on my purple alien plant under a 600W HLG led and then bam. Right now I got issues I can probably fix. There’s yellow streaking starting to happen. What could be the issue ? Going on week 3.5 of flower under 600W. Temps have reached up to 87F due to AC issues. Could it be a heat problem? I amend my soil with down to earth 4-4-4 and seabird guano 0-11-0. Maybe I’m getting either P burn or K def. I water with ph 5.8-6.3 so I don’t think it’s PH but idk. Maybe my meter is bad. The spotting is having me think K def but the yellow streaking has me thinking also mag def or heat issue.
 

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xtsho

xtsho

Well-Known Member
Armyofsprout said:
I don’t understand how to read that chart
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The red arrows mean that too much of one can have an antagonistic effect on the other. Phosphorous is antagonistic with quite a few other elements. It's also an ingredient in bloom enhancers which are far too often overused. That 0-11-0 guano is some good stuff but you might have used too much. The 4-4-4 probably would have been enough.
 
C

CannaCountry

Well-Known Member
Two things come to mind:

Your pH is probably a little too low considering you're in soil.
What are you doing for Mg?
 
C

CannaCountry

Well-Known Member
" I amend my soil ".........your words, not mine. And again, because you're using peat with coco, your pH is probably a little too low. If you were running straight coco, it'd be a different story.

Dolomite takes time to break down and become available...be sure you have that time on your side.

Good luck.
 
Armyofsprout

Armyofsprout

Well-Known Member
CannaCountry said:
" I amend my soil ".........your words, not mine. And again, because you're using peat with coco, your pH is probably a little too low. If you were running straight coco, it'd be a different story.

Dolomite takes time to break down and become available...be sure you have that time on your side.

Good luck.
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I try and manage the time to the best of my ability. I’ve been trying to get the timing down because that’s the suckiest part of amending. I had dolomite in the soil when first planted and then I also amend slightly more dolomite on about a monthly basis. I may not have put enough when I amended last.

But from my knowledge and research peat and coco both run at 5.8-6.3 unless something says otherwise, is that incorrect? I haven’t been able to find a solid report on it.
 
C

CannaCountry

Well-Known Member
In my experience, coco works best between a pH of 5.6 and 6.0, with 5.8 being the sweet spot. A peat grow will do better at a higher pH range 6.3-6.7, with 6.5 being a good place to settle...when you start taking either medium too far to the end of those ranges issues begin. Albeit, this is nature so there are exceptions.

The addition of the lime may have your medium pH too high, it could be the hybrid mix you have going, maybe your plant is just an Mg hog...just brainstorming here.
 
Armyofsprout

Armyofsprout

Well-Known Member
CannaCountry said:
In my experience, coco works best between a pH of 5.6 and 6.0, with 5.8 being the sweet spot. A peat grow will do better at a higher pH range 6.3-6.7, with 6.5 being a good place to settle...when you start taking either medium too far to the end of those ranges issues begin. Albeit, this is nature so there are exceptions.

The addition of the lime may have your medium pH too high, it could be the hybrid mix you have going, maybe your plant is just an Mg hog...just brainstorming here.
Click to expand...
yeah I was thinking of putting some Epsom salt in my next watering but the spotting is what had me thinking it was more K. The Epsom salt still may not be a bad place to start tho. I’ll also do a watering at 6.5 next time just to see
 
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