Leaves starting to taco

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Treesomewanted77

Well-Known Member
I have some small plants vegging in a flood and drain system and got some leaves starting to taco

I run these same strains in coco in the same exact environment and no issues.
Ph is always at 5.8-6.4 I have a blue labs guardian monitoring at all times.
feed is mega crop at little over 1/2 strength
Floods every 6 hrs for 5 minutes.
temps=71 to 75 degrees
Quantum board 480w 3500k with 660red
On only 50% at 30” from canopy.
Like I said I run these same strains in coco perlite drain to waste and never have this issue even when I push full lighting and higher temps. So I’m stumped. This same thing happened last flood and drain grow but not till real late in flower and I was able to finish without any issues but never got the taco figured out so any help would be greatly appreciated
 

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Treesomewanted77

Well-Known Member
Treesomewanted77 said:
I have some small plants vegging in a flood and drain system and got some leaves starting to taco

I run these same strains in coco in the same exact environment and no issues.
Ph is always at 5.8-6.4 I have a blue labs guardian monitoring at all times.
feed is mega crop at little over 1/2 strength
Floods every 6 hrs for 5 minutes.
temps=71 to 75 degrees
Quantum board 480w 3500k with 660red
On only 50% at 30” from canopy.
Like I said I run these same strains in coco perlite drain to waste and never have this issue even when I push full lighting and higher temps. So I’m stumped. This same thing happened last flood and drain grow but not till real late in flower and I was able to finish without any issues but never got the taco figured out so any help would be greatly appreciated
Click to expand...
Forgot to mention RH is 30% because of my coal stove keeps it super dry but I don’t suspect that as the issue since no other plants I have going have this issue just what is in the flood and drain system. I have these same strains in coco vegging and they show none of these signs
 
Herb & Suds

Herb & Suds

Well-Known Member
Treesomewanted77 said:
Forgot to mention RH is 30% because of my coal stove keeps it super dry but I don’t suspect that as the issue since no other plants I have going have this issue just what is in the flood and drain system. I have these same strains in coco vegging and they show none of these signs
Click to expand...
I always keep a large pot of water on the coal/wood stove
Think sauna
 
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Treesomewanted77

Well-Known Member
Also if this is a RH problem wouldn’t I see it in my other plants in coco in the same environment? I would think I would see the same issue in those coco plants but nothing they don’t have any issues like this
 
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Treesomewanted77

Well-Known Member
Just an update for everyone. I added a humidifier and that didn’t change anything so I then lowered my temps to 71 degrees. So far can’t find anything online for this issue that doesn’t say heat stress but it’s definitely not heat stress. I’m thinking I’m flooding too often so I have not flooded in past 48hrs and so far they aren’t droopy so there is too much water standing in bottom of the tables but I can’t find any issues with the roots so got to wait and see how the not flooding works out.
 
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