help with temperature please

[stefmc24]

i'm using a UTH for the warm side of my viv, and the temps are WAY too high (90 ON the substrate, 100 on the glass). so i went out and bought a rheostat to control how hot the UTH gets.

now, do i measure temp on TOP of the substrate, or do i measure on the actual glass??? i know the warm side should be in the mid 80s, but it seems quite a bit of difference from the top of the substrate (i'm only using about 1-1.5 inches of aspen) and the actual glass below.

i just don't want my new snake to be burned!

(p.s.-he hasn't gotten here yet, just trying to get things set up first!)

[DAND]

I'd go with the glass temp because if the snake burrows under the substrate and contacts the glass and it's too hot you could have troubles.

[stefmc24]

thank you.....that makes sense.

my temps have leveled off say 84 on the substrate and 90 on the glass.

should i cut it back even more, or is 90 ok as the max glass temp?

i'm just afraid if i cut it back more, the substrate's going to be too cool. :shrugs: