Hi,

I may be reading your post wrong.

Measure the temp on the bottom of the tub directly above the UTH and under the substrate.

What does that say? - that is the temp you should try and get in the 92-95f range.

Once that is right then adjust the depth of the substrate so that temps are in the 90-94f range inside the warm end hide.

Does that make sense? It's late and I'm getting punchy.


dr del