>>My wife has fallen in love with crest geckos since she first layed her hands on one at the Richmond Reptile Show. I realize I would need supplemental heating since I usually keep my house in the low 60s during winter. Because I have had a really bad experience with heat bulbs 5 years ago that caused a few hundred dollars worth of damage, I vowed never to use them ever again.
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>>If I was to provide an uth, would a crested gecko use it?
I use a ceramic heater over my snake tank. My room is fairly warm, though not quite warm enough for a UTH to be enough for my snake, so I got a ceramic heater. Semi-pricey, but it's not like having a bright light on all the time.
OR, you may want to consider just heating the room you keep the crested in; that way you can keep the rest of the house in the low 60s, and the crestie can be warm in the room s/he is kept in.
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0.3 Rhacodactylus ciliatus
1.0 Creamsicle/Okeetee Cornsnake