I went to observe the micro-aquarium, and the water level had dropped roughly 1/3, so I filled it back up and placed it under the microscope. There was much more activity this time, with lots of invertebrates I had not yet seen. The most abundant of these organisms was a small round-shaped single-cellular organism, with fast moving characteristics. They could be observed eating various dead organic matter and organisms throughout the aquarium, and in some spots they seemed to congregate and swirl around. These were identified as Colpidium sp. by Prof. McFarland, (Patterson, 1996). I was looking among the leaves and stems of the Lindberg Moss, and I observed these cup shaped things on stalks that somewhat resembled a fungus or coral. These were identified as Vorticella sp. by McFarland, (Patterson, 1996). Here is a picture -

  Last week I mentioned an organism with two flagella that moved around in a steady slow manner, this was identified as Euchlanis sp. by McFarland, (Patterson, 1996). Here is a picture of the organism -

 



There were also some diatoms that could be seen slowly meandering around the water space above the plants, were a lot of the Colpidium sp. could be observed as well. The diatom was thin and somewhat football shaped, but a lot thinner, it had green pigment in the middle which could of been chlorophyll, here is a picture of the organism, which was identified as Pinnularia sp. by McFarland, (Patterson, 1996).