Leaves Curling Unusually - Not Sure Why

[elunex]

In typical internet fashion, my first post to this forum will be one looking for help.

I have two plants, one Alien OG and one Ogre, both in veg. They both started showing some signs of leave curling upwards (only on the sides), from early on. The Alien OG however has it far worse than the Ogre. And I can't seem to find out why.

I initially thought humidity, but that seemed fine. I then did a flush with precalibrated RO water, which didn't help either. The lights aren't close to the plant, and are cool LEDs.

The soil is a pro mix that is very highly rated locally and used by a lot of growers. I may have overwatered initially, but doesn't seem to fit the symptoms.

Grow tent sits around 18-19'C most of the time, due to the low heat output of the LEDs. It's borderline temperature but shouldn't cause this surely?

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[namvet25]

You shouldn't be flushing this early so it could be from soggy soil causing lack of oxygen to the roots.Your temps are way to low,should be around 75 to 80 degrees F.Hold off watering for awhile and raise temp and see if this helps.

 

[elunex]

The flush was done after the curling began, since some said it could have been caused by lockout. So just wanted to try everything.

But thanks for the info, will work on increasing the tent temperatures and see if that maybe helps too. Especially since the lower temperatures cause longer saturation of the soil