Regarding dissolved oxygen, at what ppm do I need to be concerned, start aerator or engage in other emergency measures. Pond has trout, bluegill and yellow perch. I lost most of my trout and a few larger bluegill last winter, so I am monitoring DO. I have a small aerator, battery operated, and I can add water to the pond from irrigation piping, but that is risky in extreme cold. Things tend to freeze and break.
Brad
1.5 acre pond with LMB, BG, BCP, CC, FHM and lots of crayfish, unknown type. .5 acre pond with FHM and GSF. 12 acre irrigation reservoir that I don't know what to do with. New pond, roughly 1.5 acres. Pond Boss Subscriber.
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