Sky Blue -- here are a couple more thoughts. I think you need to think about the size of your aeration system, and the fish species you might choose. Whatever you do, it will be "experimental," just as bz indicated.
If you read some of our previous threads on aeration, you saw that we have some concerns over "supercooling" of the water. The intent of aeration is to open the ice, let in sunlight, and let the algae and plants produce the oxygen. However, if you use too big a system, you might circulate most of your small lake, and actually cool the water below the 39 F (4 C) temperature at which water is most dense. If the water is too cold for too long, we suspect that could cause a fish kill in itself, regardless of oxygen level. I really don't have the expertise to tell you what size of system for your lake size, but we've got some darn good people (such as Ted Lea) who have in the past provided very technical information. Let's see if they chime in; if not, you can track them down in old threads on aeration, and contact them directly.
Next. you'll want to think about fish species based on their tolerance to low dissolved oxgyen. I assume you have many minnows now because there are no predators. The fathead minnow is one of the "toughest" fish that we know, surviving in almost no dissolved oxgyen over the winter. Northern pike also tolerate very low dissolved oxygen. Of all the panfish, the yellow perch is the most tolerant. That's why shallow, marshy lakes in your area that frequently winkterill probably contain these two species. The MN DNR uses them to manage winterkill-prone lakes. Fishes such as walleye, largemouth bass, and smallmouth bass are not as tolerant of low dissolved oxgyen, and will die before the pike and perch.
