The organisms still seem to be scared away by the haunted water, but I was able to see a few of them swimming around.  The Actinosphaerium sp. was very cool because, as you can see from the pictures, it was undergoing mitosis and dividing.  Also, you could see in the microscope a small bubble on the side of the orb-thing where it was capturing nutrients from the water.

Ref:  Patterson, D.J.  Free-living Freshwater Protozoa.  1996.  Fig 394, 395.

Ref:  Patterson, D.J.  Free-living Freshwater Protozoa.  1996.  Fig 394, 395.

It takes a while to divide though, so I started looking around from some for little organisms and stumbles upon this little guy, who turned out to be a rotifer (Philodina sp.).  The spinning rotifer on the top of it was going to fast for the camera to take a good picture of it, but it was contracting and expanding under the microscope.

Smith, Douglas Grant.  Pennak's Freshwater Invertebrates of the United States.  2001.  Fig 7.3.