2 different strains and issues. Any suggestions?

TCH

TCH

Well-Known Member
Coco
MaxiGrow ~4.5g per gallon
CalMag 2mL per gallon
774ppm
5.9pH
20230722_084457.jpg


First up is Blueberry cupcake. There are 4 plants grown from clones. Appears to be on all 4 plants. I kind of thought it looked like iron deficiency maybe? Looking at the pH charts though, that shouldn't be locked out, I don't think.
20230722_084326.jpg20230722_084336.jpg20230722_084344.jpg20230722_084355.jpg

Second up is Cinderella Purple from Brothers Grimm from seed. It's only on 1 plant. I have looked and don't see any critters.
20230722_075117.jpg20230722_075120.jpg20230722_075113.jpg
 
Kushash

Kushash

Well-Known Member
TCH said:
Coco
MaxiGrow ~4.5g per gallon
CalMag 2mL per gallon
774ppm
5.9pH
View attachment 5310866


First up is Blueberry cupcake. There are 4 plants grown from clones. Appears to be on all 4 plants. I kind of thought it looked like iron deficiency maybe? Looking at the pH charts though, that shouldn't be locked out, I don't think.
View attachment 5310862View attachment 5310863View attachment 5310864View attachment 5310865

Second up is Cinderella Purple from Brothers Grimm from seed. It's only on 1 plant. I have looked and don't see any critters.
View attachment 5310867View attachment 5310868View attachment 5310869
Click to expand...
I was just going to follow being a soil grower but since no one has popped in yet I'll leave a comment then go back to following.
1st thing that should always be asked. Is your PH pen calibrated? Do you have a backup for PH testing. Drops are a great way to make sure things are good.
Not sure what you see as an issue in the new growth. Is it the very slight yellowing tips or is it yellowing starting at the stem of the leaf. The older growth pics of the large fan leaves might be Magnesium deficiency. It may have been deficient a while back and is fine now. Depends on if the yellowing progresses or has stopped. Might have needed a dash of epsom salt at some point.
Someone is likely to mention the temp. LED right? Are your day time temps closer to 80?
I think we were in a grow comp together a few years back. Anyway, Good Luck and Happy Growing!
 
curious2garden

curious2garden

Well-Known Mod
Staff member
Kushash said:
I was just going to follow being a soil grower but since no one has popped in yet I'll leave a comment then go back to following.
1st thing that should always be asked. Is your PH pen calibrated? Do you have a backup for PH testing. Drops are a great way to make sure things are good.
Not sure what you see as an issue in the new growth. Is it the very slight yellowing tips or is it yellowing starting at the stem of the leaf. The older growth pics of the large fan leaves might be Magnesium deficiency. It may have been deficient a while back and is fine now. Depends on if the yellowing progresses or has stopped. Might have needed a dash of epsom salt at some point.
Someone is likely to mention the temp. LED right? Are your day time temps closer to 80?
I think we were in a grow comp together a few years back. Anyway, Good Luck and Happy Growing!
Click to expand...
I could see the very slightest bit of interveinal chlorosis but I've seen that with fast growing and his maxi should have enough Mg. So I didn't say anything since I don't really see anything. I'd wait and keep on keeping on.
 
  • Like
Reactions: TCH
TCH

TCH

Well-Known Member
Kushash said:
I was just going to follow being a soil grower but since no one has popped in yet I'll leave a comment then go back to following.
1st thing that should always be asked. Is your PH pen calibrated? Do you have a backup for PH testing. Drops are a great way to make sure things are good.
Not sure what you see as an issue in the new growth. Is it the very slight yellowing tips or is it yellowing starting at the stem of the leaf. The older growth pics of the large fan leaves might be Magnesium deficiency. It may have been deficient a while back and is fine now. Depends on if the yellowing progresses or has stopped. Might have needed a dash of epsom salt at some point.
Someone is likely to mention the temp. LED right? Are your day time temps closer to 80?
I think we were in a grow comp together a few years back. Anyway, Good Luck and Happy Growing!
Click to expand...
Two new pH meters and they are both within .05 of each other. Calibrated when new a couple weeks ago. The one pictured is an inexpensive Chinese deal that was surprisingly more accurate than expected. I check it against my Apera fairly regularly.

As far as what I see, it appears that the leaves are lighter towards the stem and get gradually darker. A bit more than with normal new growth. LED and the temp normally stays upper 70's to lower 80's.
 
You must log in or register to reply here.
Top