What I'm wondering is, is it possible to use a fishtank heater on such a low setting as to keep from freezing, but not above that? The attic isn't insulated, but I'm not sure how cold it gets, especially at night. What sort of options do I have. I tried the refrigerator a few years ago and it lost my plant to mold, so I'd rather avoid that, especially since I have had such lovely success with these plants this time around. Am I hoping for to much from a fishtank heater? What other equipment might be called upon? Am I going to be needing some sort of thermometer with a remote alarm to wake me up in the middle of the night?
I realize that in a few years I'm going to be one of those people who has their plants hooked into their computer for remote monitoring, I just can't afford it yet. Ahh the trials and tribulations of growing exotic tropical fruits, orchids, and temperate carnivores in a rented zone 5 apartment.