small heater?

I think Betta's in a jar at a decent room temp usually don't need a heater, do they??? Anyway, I've seen heaters at Walmart that were very small, smaller than usual anyway....Hope this helps....
 
I raised bettas for years and never needed a heater.

One time during an Illinois winter, my car broke down in the middle of nowhere and I had my betta with me (college student en route back to school). This is Illinois mid-winter we're talking about here - probably about 40 below with wind chill. He was in that little mayonnaise jar for about an hour. I tried to keep the jar in my jacket but it wouldn't fit. He kept moving slower and slower, and going clearer and clearer until I could see his poor little organs in there and he was lying on the bottom of the jar. Then help arrived and I brought him to my warm room and let the water heat back up naturally to minimize shock. After just a few hours he was as good as new!

Not that I would recommend you keep your betta in freezing water, but I have never had a need for a heater, EVER. He will be just fine without it! :cool:

I would be more worried about what would happen if the heater malfunctioned and overcooked the water and the fish. It's been known to happen.
 
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