Curled top leaves

AntoMaria7

AntoMaria7

Well-Known Member
Ok so i was happy nothing wrong happened until now in this grow and i woke up to this. Yesterday was perfect, and from three plants she is the biggest and strongest one. Maybe the lights are hanged too low? I just bought some new lights and i’m planing to put them higher tomorrow, as i have to cut the closet:))). So i’m really worried…just one week since i switched to 12/12
 

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This should be your sweet spot, but temps, CO2 feed, and other things can affect this.. But if you can be within 1.2- 1.6 kPa, you should be fine. You can move the target to suit your environment, but stay in the 1.2 - 1.6 range on kPa during flower.



Screen Shot 2022-03-06 at 1.02.54 AM.png
 
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If it's only the leaves near the foil wall I'd say it's a hot spot area for light bouncing off the foil. If it's all over the place then just too strong a light for them. Flat white is best or that not so shiny foil.

I use a temp gun to check leaf temps and adjust the light up or down as needed. Just switched from a 400mh to a 600 and toasted a few myself. :(

:peace:
 
AntoMaria7 said:
Ok so yesterday i put one hour the new lights, i saw the leaves like that and put the old lights on, in 5 hours they are back to normal:shock:so i really need to put them much higher right?:))
Click to expand...

Sounds like that's the solution to me. What are you using for light?

:peace:
 
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