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Joined: Jul 2019
Posts: 38
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OP
Joined: Jul 2019
Posts: 38 |
Back when I had an 8 acre pond down south, my aeration system used 6 diffusers. In winter there was rarely any ice cover, but I would turn off the deepest 2 diffusers to reduce cold water stress on the fish.
My new pond up north is only 4 feet deep. If I don't run a diffuser in winter I'm concerned about low DO under ice cover. If I do run a diffuser in winter, I'm concerned about low temperatures at the bottom of the pond.
Is there a way to limit ice cover without reducing bottom temperatures in a very shallow pond?
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Joined: Aug 2017
Posts: 233 Likes: 15
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Joined: Aug 2017
Posts: 233 Likes: 15 |
In winter, I only run one diffuser, and in the shallower area, (Wisconsin weather). If I had your dilemma, I'd probably incorporate a timer. Not sure how often you run up north to the pond, but I'd turn it off completely during any sub-zero cold snaps then resume timer operation for mild winter weeks.
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Joined: Nov 2015
Posts: 144 Likes: 1
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Joined: Nov 2015
Posts: 144 Likes: 1 |
Here in Michigan I keep my diffuser running 24/7 in the winter at 2-3 feet deep next to my dock,my other two diffusers I close off. One it keeps the ice away from the dock and two it does add DO without chilling down the rest of the pond. After 5 years I have had very little winter kill, just a few fish and it seems to work for me, hope this helps.
half-acre pond, LMB, HBG, BG, GSH and CC ....goal is to have fun fishing. And I subscribe!
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