Heat stress??

growbeast

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Guessing heat stress?
 

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The picture is out of focus so it's hard to tell. What are your temps and humidity running? What kind of light and how far above the seedlings?
 
Leaves will usually taco/canoe (fold up along the length of the leaf) if heat is a problem , but not sure if this applies at this young age.
Light stress, the teeth of the leaf turn up but the leaf doesn't fold.
I like muddy pointed out the pic is out of focus, if possible take some more pics and upload a clearer pic if possible.
Looking at your pic there is a little tooth curl on the left hand leaf, but I can't make a proper judgement with this pic.
At this young stage it is possible to give to much light/heat quite easily, if your worried this might be the case back the light off and blow cool air across the light with a fan.
 
Thanks for the quik response guys.

Not sure about temps, i know when i put my hand by the seedling it seems to not be to hot. 600watt hps. Arty, your right its the teeth of the leaves curled up, not the whole leaf.

Having diffaculty getting you guys a better pic using a phone camra, sorry.

So if its to much light i can turn my ballist down to 75 or 50 percent. What are the overall effects of to much light?

I have ourdoor air blowing threw now steady, my light is littetally almost 3 ft away from the plants. 3 pk autos from buddha, 3 gal pots ffof soil pretty basic closet grow
 
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3 feet away from the plant with outdoor air flowing through doesn't seem like it should be too hot. I start my seedlings out with a 600 Watt MH at about 3 feet away. You can't really have 'too much light' generally extra light won't be used the same way extra CO2 won't be used. However too much light can equal too much energy which is generally too much heat or radiation. But 600 watts 3 feet away (that's light an entire meter away) from the seedlings is not too much light.

What type of soil are you using?

Are you feeding it?

Generally I just put my seedlings in some good soil (like Plagron Light Mix, or BioBizz light mix) feed it lightly with water every few days for the first 7-10 days and that's it!

I think if there's something wrong at this stage it's either the soil or the way you're feeding it, most likely...
 
I'm not an expert but mine used to look just like that under 600 hps (16" away). After few days it stopped, happened only on first pair of leaves.
Can it be that little plants have to get used to lots of light?
 
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The picture is out of focus so it's hard to tell. What are your temps and humidity running? What kind of light and how far above the seedlings?
so if newest growth is pointing up to light touching like the tips of eachother thats heat stress ???
 
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