Oyygen after 5 days of snow

[Click the graph to see an enlarged version]

There has now been snow cover for 5 days and there are the first signs of oxygen levels dropping under the snow.

Levels seem to be dropping in the old pond, though there’s no sign of change so far in the new pond.

We recommend clearing snow (carefully – see here), but I’m going to leave the snow on my ponds to see if oxygen levels do decline.

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