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Joined: Jan 2009
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Moderator Ambassador Field Correspondent Lunker
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Moderator Ambassador Field Correspondent Lunker
Joined: Jan 2009
Posts: 28,537 Likes: 844 |
Welcome to the forum. I would be concerned with O2 first, and water temp second. You don't want the winter water temp to go much below 2.5°C. Typically the water at the bottom of the pond during the winter will be around 3.9°C.
If you have a few inches of ice and a few inches of snow, the O2 levels will start dropping due to no sunlight penetrating into the water. Winter aeration with the bottom diffusers no deeper than 1/3 the total water depth and keeping an area or areas open that equal to 1/10th to 1/20th of the total pond area should be enough.
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