my first gecko

on the hot side of the tank it’s usually around 89-94 degrees fahrenheit but on the cool side the wall temperature says 65. how do i get the heat up on the cool side?

So I just got my first reptile ever from a friend. She’s a crested gecko and she’s about 2 years old. I’ve been wanting a gecko for a little over a year and I thought that I had done a lot of research about the animals and the care needed for them. I went and picked her up today from my friends...