shit dude thats a hell of a setup you got going.

I had no idea it was a soil-less grow.

Perhaps someone more familiar with this setup could help.

The leaves you are referring to look ok to me. Looks as they are just turning up to grab the light, nothing more nothing less.

But again, I am not a bubbler knower.....you need to ask Zandor about this issue to get a real pro's advice.

I still say stay with the fan 24/7... what is the air temp at the plant surface?