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15 inch deep enough for winte in Michigan?
"~ jan" wrote:
On Fri, 23 Nov 2007 12:35:32 CST, Derek Broughton wrote: Since I don't believe that you can get stratification in winter in a 15" deep pond, it makes no difference (to temperature) whether a bubbler is used or not. The bubbler exists just to keep a hole open, and . The concept of "hyper chilling" makes no sense to me. Goldfish will survive water right down to the freezing point (with the odd claim that they actually survived freezing - but I think there'd be lab experiments to show that if if really could happen). You can't make a pond get colder than that without salting it (noticeably more than the prophylactic salting many use), and a bubbler would actually make it even _less_ likely (try super cooling water at home - you can do it, but stirring it will make it freeze immediately). ....stirring make it freeze immediately.... That goes against the principal that moving water doesn't freeze as fast as still water, doesn't it? ~ jan And hot water freezes faster than cold. Oh, wait, sorry, wrong newsgroup. That's rec.physics. San Diego Joe 4,000 - 5,000 Gallons. Koi, Goldfish, and RES named Colombo. |
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