Quote:
Originally Posted by denman
I'm curious to know if you need to use BOTH an UTH and a heat source from above ??
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Depends on the ambient temperature in the room, the material the enclosure is made of, and what you are trying to accomplish.
Glass tanks are about the worst; they don't insulate well or hold humidity well. They're great for fish, not so much for reptiles.
An under-tank heater is just supposed to create a hot spot for your critter to lie on, it is not designed to increase the ambient temperature in the enclosure.
The problem with overhead heat sources and an open screen/mesh top tank is they quickly create a desert environment so species that need a decent amount of humidity don't do well in them.