I keep mine at room temp with a light on one side and an underpad on the other, (room temp in the middle) and they thrive wonderfully. As long as they have the options, (and places to hide) in all temperature zones, they are going to do great IMO.
Granted I have a 60 gallon tank so there is a big space between each "area". The only area I know for SURE is 82 degrees is where I have my eggs incubating and thats my females favourite spot to slumber.. she likes it warmer when shes gravid, when shes not you find her far away from any heat.
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Mommy of Many
1.0 Tremper Albino Leopard Gecko
0.1 Normal Leopard Gecko
0.4 Incubating Leo Eggs
0.1 Rosey Tarantula
1.0 Boxer Pit Bull
0.1 Springer Spaniel
0.1 Lhasa Poo
1.1 Domestic Cats
3.1 Humans
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