Thanks. On your thread with the t-8 it doesn't look like you use rhps. How do you control ambients--do you just heat the room? I've been struggling like crazy with temps and want to make sure I have the right set up. I have emails out to pro products and animal plastics since they aren't open on the weekends. Just doesn't seem like one strip of heat tape in the middle would be enough to heat the whole enclosure. The ambient in my house ranges from about 65-72. I'm wondering if I should get the flexwatt on both sides so that half of each side is covered with the tape. I'm guessing this is like the 1000th+ you've been asked this stuff.