My viv is sat at a constant temp of 80 degrees, and 100 ish on his basking spot.

Do i need to make it cooler than 80 at night and hotter than 80 in daytime or is the temp pretty much what they need?

i have 2 heat pads on the back and a 18 inch tube, but the heaters are never on due to the light providing the heat.

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Dom