"Derek Broughton" wrote in message
...

In S. Ontario, with temperatures down to -25C, I could keep a hole open
with
a 15W aquarium air pump and one of the long (6") air stones, suspended
6-12" below the waterline.

Will a fountain run winter long, and also help add oxygen as well?

We have a 2 ft tall gargoyle fountain that might help prevent ice formation,
and increase oxy flow...


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