Also you may want to consider an electronic thermometer, usually for around $20 or so, or you can just use a glass one floating in your sump, you'll get a more consistent reading. The stick-on-the-glass kind are a neat novelty but not really the best for a solid reading since they are on the outside of the glass so the tank temperature has to travel through the glass and also fight with the room air temperature and so on.
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-- Tony
My next hobby will be flooding my basement while repeatedly banging my head against a brick wall and tearing up $100 bills. Whee!
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