Originally Posted by DormDrax
I say go for it...
Here in St. Louis the Temp FLUX's like a drunk person trying to walk a straight line...
I'm in St. Louis too and I know what you mean. Yesterday it was warm enough to wear shorts, and today it's so cold that it's painful to walk outside. Our weather is so bipolar.
All three of mine are in unheated living conditions and are pretty active. It's dang cold in here sometimes too. I don't like having those conditions for them. But that got remedied with my Christmas present which is a 15 gallon tank. Got the heater, just need to find the time and place to set it up. I am hoping to do so within the week.
But many people have had success, including myself, with bettas in unheated (and chilly!) water. The bad thing is I know they don't really enjoy it since they come from warm areas.