For my third observation, I noticed more of the same of what I saw in the previous observation. The worm I have been mentioning has started to move out of the silt and into the surrounding water and is also visible with the naked eye. I was able to get a picture of it while it was still:

I saw many more rotifers and noted several different types, notably sessile (attached to a substrate) and motile ones (inched along in the micro-aquarium. Below is a sessile rotifer:

As you can see, it is grounded to plant life in the micro-aquarium via the tube and holdfast.

Below is a motile rotifer:

It is hard to tell from this picture, but I watched this rotifer move along the micro-aquarium, taking in and digesting smaller particles until it reached the location of the picture and stopped moving.

Observation 2

For observation 2 though it is late, I did not see as much activity as I expected; granted there was more than when I last observed. The heterotrophic worm I saw moving through the silt in the first observation has grown and as for any other life, I noticed several rhodococcus (pictured below) and other organisms I could not immediately identify. My water samples came from sample 5.

Observation 1

For the first observation, I saw very few organisms. Of the few I saw, there was one that particularly caught my attention. There was a worm-like organism moving through the silt on the bottom of my container. I assume it was eating because there was a small, circular "tunnel" behind it. I saw other organisms, though none were as large or active as the one I mentioned before.

In regards to the plants, there was, as I expected, not any activity.