Heating.

[Mentat]

You need to measure the air temperature inside the enclosure; not the glass temp which is what that stick on gauge is probably doing. Recommend place the probe of a digital thermometer, where frog spends most of the time, and get day/night readings from there .

[dbizal]

I was thinking that would be the problem with the stick on. I have bought a thermometer to go on the inside of the Viv so hopefully will get better readings. No frogs just yet, want to get everything perfect before I introduce frogs to the Vivarium.