Anyone know what I can use to maintain soil temp? other than a heating pad. weather says it's going to be 68 tonight (the low) but I have them outside during the day because I have central air inside my home and it's keys pretty chilly. but now it's gonna get pretty chilly out tonight. would a light work? or anything?
I use a light in a metal box, with a temp controller fixed but even the top of your modem, depending on size, a heating pad is a good idea if this should be a repeating occurrence?