Hmm. I'm a little surprised by some of the responses here. Let me try to explain.
At the moment I keep 25 garter snakes, all told, including babies, and from time to time it's been a <em>lot</em> more than that. And I've <em>never</em> had any problems with under-tank heat, with garters or with any other snakes -- and I keep most of them on paper towelling in glass aquaria or in plastic cages (Hagen "Critter Keepers").
I'm a little confused about some statements made about UTHs. If it's hot enough to kill a snake that gets down to the bottom, it's way too hot, period! Unless you're referring specifically to the commercial under-tank heaters (I've never used those, mostly due to their expense)? Am I missing something?
[edit: Apparently I <em>am</em> missing something. I was just told via IM that some commercial heating pads get <em>really</em> hot -- hot enough to hurt your hand if you touch the glass. That's not good. If it's uncomfortably hot to the touch, it shouldn't be used in a paper towelling/newspaper substrate situation. I understand now. Sorry. Don't use a commercial reptile heat pad. Which brings me to . . . ]
Garters don't need tropical or desert temperatures -- maybe a few degrees above room temperature for most species kept. A standard electric blanket [edit: the sort you'd buy at a drugstore] at the lowest setting is as much heat as most of my snakes get. Never had any problems with ventral burns or overheating. [edit: Besides, the "human" heating pads are cheaper!]
Not only that, but in my experience garters are less prone to burrow than other snakes (<i>Pituophis</i> and <i>Lampropeltis</i> come to mind). <em>Most</em> snakes avoid heat by burrowing. If you were keeping <i>Tantilla</i> or <i>Virginia</i> or something else that was heavily fossorial, I could see avoiding [edit: a <em>controlled</em> amount of] under-tank heat on that basis, but most of what we keep doesn't need that level of prevention.
This is not to say that a heat lamp isn't a good idea, or even preferable, it's just that you don't have to avoid under-tank heat [edit: in general] like the plague. [edit: Just the commercial reptile heating pads.]
Last edited by Jonathan Crowe; 02-29-04 at 11:39 AM..
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