Thu, Oct 7, 2004, 12:21am snipped-for-privacy@privacy.net (Bill=A0Stock) says: I'm in Zone 5 and the water in my puddle is only 2' deep, so it could freeze pretty deep. I plan to use a small heater to keep the bottom of the pond around 40F (hibernation temps). But without the cover the heating bill would be a killer.
Fascinating. Did you know that some fish (Hell, maybe all of them, for all I know about it) have the ability to be frozen, then go right along with their lives when thawed? Be an interesting experiment, see how many survive.
Heater? How about a bubbler instead. They use 'em to keep ice from forming around moored boats. Simple enough to whip one up.
But, what I'm really wondering is, if you cover the pond up, with fish in it, where's their supply of new oxygen gonna come from, once they use what's there? I'm thinking a cover would make it sort of a sealed environment, with only X much oxygen. That's supposed to be why they change the water in fish bowls, that don't have air pumps.
Or are you talking about a cover not resting on the water?
On the other hand, if it's only carp and/or goldfish, I wouldn't worry about it.
JOAT I smile because I know my God loves me. You on the other hand, he doesn't much like.