Quote Originally Posted by Argentra View Post
You need one heat pad/heat tape per tub. But if you have 6 or less tubs, you only need one thermostat.

Even the ZooMed stat, which only has two plugs, can handle up to 500watts. This means that as long as you don't get close to 500 (and you won't unless you have a LOT of tubs) you can use two 3-way plug adapters or even a power strip plugged into the stat, with all your heat sources on that.
I only have 2 right now, so thats great!

But, I;m still confused about under tank heaters. What is a safe temperature?