So, I went down the rabbit hole on youtube of everblue lakes, a company that aerates entire lakes to fix issues they have. What I think you are looking for is something like the Airstream High Volum Water Circulation system. Here are a couple of links to it in action. If I remember right, there are other brands that remind me of a trolling motor that swivels like a fan. The water movement slowly but surely removes it. The AirStream looks like it adds air with it to further help the aerobic bacteria dissolve the muck. If you want to DIY it you may be able to take a trash pump, hang it off your dock and direct the flow. Or buy a kit like this https://weedersdigest.com/aqua-thru...npJnGuAh1QWHRlD5zFhto8P7rzoaAvDDEALw_wcB or this https://www.thepondguy.com/product/...uPmmAPgQvz42jBKWJSpfdt0TkDQaAs6sEALw_wcB and you can combine it with the aeration system under the motors so it acts like the fancy AirStream system.
