Thread: Koi & Pond Newbie Questions
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Old 06-05-2008, 12:17 AM posted to rec.ponds.moderated
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Default Koi & Pond Newbie Questions
IMO, the best way to keep a hole in the ice is air.

I'm in zone 4/5 and my pond gets 10" of ice, easy. With an outdoor air
pump and and air stones I'm able to keep two 1.5' holes open all
winter, and it's cheap.

Dave

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