Slight leaf edge curl - Normal?

[The Germinator]

This is from my current grow on my Sig. Noticed slight leaf edge curl. Not tips. Is this normal. Will post stats. Should I raise ppm? Ty
Ph 6.0
Ppm 398 using flora trio
Water temp 68
Air temp highest 82. Now 78
Day 13 since I put rapid rooter/seedlings into hydroton.
Any advice is always appreciated.
I raised my 5100k 100 watt led lights up some hoping to encourage it to grow taller. Two bulbs per plant. Waiting for my 600 watt to arrive.

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[Major PITA]

Not exactly normal. Probably heat stress.
A Mg deficiency will also cause edge curl, but it looks different - more spikey. This is too early for that to show anyway.

 

[Brewer]

ive got a RQS critical growing now with the leaf curl, alongside a blue mystic, and a green crack from crop king.....its the only one with the curl.
it might just be genetics.

 

[JimmyJames905]

Curling up = too much heat or light.
If you want it to grow taller switch to 3200-3500k for a week. Though 5000k will give you a thicker, fuller plant at veg.
Shouldn't your PH be 5.5 for hydro?


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[The Germinator]

Curling up = too much heat or light.
If you want it to grow taller switch to 3200-3500k for a week. Though 5000k will give you a thicker, fuller plant at veg.
Shouldn't your PH be 5.5 for hydro?


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5.9 is what's recommended. But someone here posted a chart showing how diff nutrients uptake better at diff ph ranges. Therefore he believes letting your ph cycle from like 5.6 to 6.3 will give you more efficient nutrient uptake.

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[The Germinator]

Actually 5.8 is what I've seen recommended the most. I lower it to 5.8 then let it rise to bout 6.1 then lower it again. Wish I had a link to the post.

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[JimmyJames905]

Hmmmm. I've always used 5.5 at it tends to rise to 6 after a few days. But if the bottle says 5.9 go with that. Either way looks great....especially since it's still got its primary leaves on.


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[The Germinator]

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[JimmyJames905]

Ive seen conflicting data. Especially in Phosphorus. Some people don't realize there's Mobile Phosphorus and immobile phosphorus as well as several different types of phosphorus including phytase, phosphoglycolate phosphatase, 3-phosphoglycerate phosphatase, phosphoenolpyruvate phosphatase, and phosphotyrosyl-protein phosphatase.


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[The Germinator]

Curling up = too much heat or light.
If you want it to grow taller switch to 3200-3500k for a week. Though 5000k will give you a thicker, fuller plant at veg.
Shouldn't your PH be 5.5 for hydro?


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Look at the chart. If you kept your ph at 5.5 your plants wouldn't get P or MG.
I added a 2100k bulb with my 5000k to encourage a little more stem growth.
I agree with heat stress. Ty.

 

[redmud]

My buddies Dogwalker did the same thing from seedling all the way through flower I kept thinking it was a molybdenum deficiency and cal mag phos either way it produced pretty well for him.