Okay, I got a question. Anybody have experience with super low RH? I've been running at a constant 16%. Lowest I've grown with. My grow room is an uninsulated addition to the house (the sun room). I've been running the crappy baseboard heat with an additional tiny, heat blaster, my buddy gave me when the temps went down to 20's.
My question...with such low RH have you seen tops actually curl inward? I see the serrated leaf edges curl to "cup water begging for rain". Tops curling is new to me. I assume it's the same principle...pull inward to funnel water to the roots when rain comes.
@Dudeski If you don't know, you know someone who does. If not, I quit.