Great video!

In your original post, you said almost no weeds after the renovation. That pond shot looks very mature and fertile. Is your video from a section that you did not disturb during the renovation?

Also, a lot of the "color" in your pond water may be due to phytoplankton and even zooplankton. I am hoping your tannin content will not be significant.

I am NOT an aeration expert, but IMO aeration would be a benefit to your pond. I am more worried about a fish kill under the ice as your fish mass in the pond increases. I think an aerator in shallow water during the winter might save you some future mishaps. (I assume you sometimes get heavy snowfall on top of 100% ice cover.) If all of you aquatic plants and phytoplankton die off due to lack of sunlight, they will consume most of your pond oxygen as they decompose.

P.S. There is a chance that I turned your aeration post into a "tannins" post when I tried to answer that question. If you are still contemplating aeration, perhaps you should type a new post and just discuss the particulars of your lake and your northern location, and see if you can get some good aeration system advice?