That tank rocks!!!!
I use foil tape to tape down the probe.
Like DellaF already said....hydrofarm! For the money they are the best. They don't have a night drop but if it's for belly heat does it really matter. I have four of them and 1 of them runs 2 tanks.
Use a ceramic heat emitter for heat and the light only for your viewing. You can control the che with a dimmer for the ambient heat.
This is how I set mine up and has worked so far although I don't use any lights and have taken many other members ideas and used them for the best setup.