Earlier today, I observed my aquarium for the last time. The first thing I noticed was that there were no rotifers in my aquarium, and there were only a few ciliates still present. Dr. McFarland said the reason for this was because they just ran out of food. Acolosoma (Annelid Worms) were still present along with Ankistrodesmus and Gomphonema, two different types of algae. There was also a type of algae present that Dr. McFarland could not identify and said it was very rare. Amoebas were also present in my aquarium. According to the Free Living Freshwater book, I also had Paranema the aquarium. It is a colourless euglenid that is considered to be a phagotroph and minipulates other protists and detritus into its cell by ingestion rods (51-52). The first picture above is a picture of the Paranema. The second picture below is a picture of one of the amoebas.
Patterson, D.J. Free Living Freshwater Protozoa- A Colour Guide. London: Manson, 1996.
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