In this past observation I noticed a very large amount of perimysium showed up and they were in all different areas of the aquarium. They tended to group together and stay in certain areas. Along with the excess perimysium that appeared there was a single midge swimming around the open area of the aquarium. It was moving forward and backward equally as much. It would also occasionally wag back and forth somewhat violently and I could not find a reason for it doing so. This midge was larger than others that I have seen in people's aquariums and it was even possible to see it without the microscope, just looking at it with the naked eye. There were also a number of actinophrys that showed up. They were mostly in the open areas, which is different than the last observation where it was in the dirt on the bottom.
A very interesting thing that I saw was a rotifer that had pinched a limnias on its tube and would not let go. It was hard to identify what was actually happening because the view of the limnias that we had was from directly above and it was somewhat hard to see (Fresh Water Invertebrates of the United States, 1989). Another unusual thing I saw was a stentor in the middle of the open area, which is unusual because it usually attaches onto the side or to dirt. And the last new organisms were volvoxes. They are very much like the actinophrys, but I could see the shorter flagellates and the daughter colonies that are part of volvox.
Bibliography:
Pennak, Robert W. Fresh-water Invertebrates of the United States: Protozoa to Mollusca. New York [etc.: John Wiley, 1989. Print.
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