Thanks for the help! I'll be sure to measure the temp on the glass as well. I'm using eco earth and to be fair there's not much covering the glass anyway (I used a whole block of it and it only just covers the bottom of the tank) so I doubt that it's that much of a temperature difference, but better be safe than sorry.

I was worried that 82-83 was too cold, so I'm glad to hear it's okay. I'm thinking I'm gonna set the thermostat lower by a couple degrees, just to be safe.