hey all, im currently in veg state of my grow right now about a week in with my 4inch pots. In my room where they are vegging, sometimes at night it gets cold. My question is, can i put my heat mat on to keep the bottoms of my girls 4in pots warm or is that not a good idea to do? Anyone else do this or have any input on the matter? If so, +REPS to you.