PS: I fell through the ice last weekend!! BE CAREFUL! Copy this link and go to it.
The lake can be a very difficult one to fish. The spring-fed waters are crystal clear and reach over 40 feet in depth. Most parts of the lake floor are covered with tall weeds. The depth and the weeds are what make fishing difficult. It's hard to get to where the decent fish are. There are shallow flats along probably 40% of the shoreline; however, beyond that (and around the rest of the lake) are are large dropoffs.
In the summer, especially on the weekends, excessive boating (skiing, tubing, etc.) will make daytime fishing nearly impossible.
The most popular species in the lake are Bluegill and Largemouth Bass. There are so many Largemouth that it is hard for other fish to grow and develop. 16"-19" fish are pretty common. Bluegills are very common, although catching decent-sized ones are quite tricky because they head to deeper water after spawning.
In the last few years, Northern Pike have been making a comeback on the lake. Every now and then you'll see a small Pike, but the numbers aren't there yet.
As far as Walleye go, they don't naturally reproduce in this lake. Any in the lake were most likely stocked by individuals, or remaining from when the lake was stocked with them years ago.
Crappie and Perch also exist, but the numbers aren't there. Every now and then they'll try to make a comeback, but I believe the number of Largemouth are preventing any other fish from thriving.