I observed my aquarium on this past Thursday. Not much had changed from the previous week. The only change I observed was that some of the rotifers had moved from the bottom of the aquarium to the middle. The ciliates were still swimming around the middle and the bottom of the aquarium. I also noticed that there were three Annelids at the very bottom of my aquarium. Last week I only saw one and posted a picture of it eating a rotifer. There have been no noticeable changes to the size or habits of the organisms in my aquarium. The picture above is a picture of a ciliate. It is hard to get a good picture of this organism because it is constantly moving really fast.
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