Heat probe placement!

[talmadge]

I have a temporary setup with a zilla heat mat connected to a Vivarium ve-200. I'm not sure where to place the probe exactly.
Any answers will help I'm getting 98 degrees inside but 87 outside on mat.
Temp set to 89

Thank You

[cyclops23]

Place the probe outside the enclosure between the UTH and the bottom glass. Check out "jfreels glass tank setup" sticky thread on this page. Shows you exactly what to do