Twisted baldes?

OK the plant in question is a 3 day old Northern. I grow in sunshine mix 4(soil w/ perlite) and use chemicle nutes, the pH is at about 6.5. I use a 400w MH bulb. The temp is a steady 79-80, and humidity is 28-35%. Today I flushed, transplanted then fed with 1/2 concentrated 10-10-10. Then a few hours later once they had a chance to absorbe the water I LST'ed a little to expose some branchs. Now it is only one blade on one leaf that is twisting. I don't know what it could be from...blushing...it could be any one or a combo of everything I threw at her today. On another one of my Northerns(Exact same for everything above) one of the leaves blades seem to be slightly tilted but no where near twisted. Is it just my plant recentering itself, or WTF????

heat stress? your light may be too close

If the blade is not folded in any way and is merely repositioned, then there shouldn't be a problem. When the blades are no longer flat is when you generally have to worry.

Mods can we get this double post fused with the other? It's gonna get confusing.

Sorry I double posted. I was worried that I might have burnt them with nutes in which case I wanted to find out ASAP so I could flust to reduce damage. Turns out I think it was the heat.

Nice room, did you just build a 2x4 frame and staple the plastic up? Thatâ??s what I plan to do when I have the space.

I know heat stress well, itâ??s a old friend of mine. Iâ??ve caused it in probably every way.
I attached two pictures.
One is classic radiant heat stress. IE the light is too close causing only the top of the plant to be too hot, thus it only affects the top of the plant.

The other (the clones) are from fluctuation heat stress. (I made these names up)
They had a large degree in fluctuation which exceeded the acceptable range for growth.

We had to cover them with a blanket at night to block the light, as they lived in our bedroom (on 24/0 photoperiod); so they heated up too much at night. And they were near a window so they got too cold in the day. They are fine now and growing well, heat stress IMO isnâ??t a big deal. Once you fix it you plants grow fine.

Nowâ?¦
Notice the different looks of the plants. The radiant heat stress cased the leafs to grow funny. The blades arenâ??t flat they have ridges because the areas between the veins have swollen up leaving the veins imbedded (creating ridges)

While the clones have developed twisted growth with flat leafs. It is kinda hard to spot in this pic, look at the two plants in the middle row. Notice the lower two fan leafs on the closestâ?¦

I didnâ??t see any good pics of the grow tips of your plants in your photo bucket.

That first pic is right on, but mine was just one blade.

My room was 2x4 and I covered it with visqueen(sp?), it's black on one side, white on the other and light proof. I piucked it up from my grow shop at a $1 a foot 10 feet wide. It works great.

yea it's great stuff, I just call it plastic. I got a big 100 ftx10ft roll for 60 bucks