week 4

My MicroAquarium was significantly less busy this week. The food pellet was entirely gone, along with most of the action that accompanied it. There was an unidentified, worm-like analyd moving around at the top of the tank along with multiple cyclops, but those were really the only mobile organisms present in the aquarium. Both are fairly large, multicellular organisms, so I would assume that they ate the smaller organisms once the food pellet ran out. This explains the lack of activity as well as the dead organisms littering the bottom of the tank. The Amblestegium varium moss and Utricularia gibb were both still present in the tank to provide oxygen (McFarland 2013). There were also still some Vorticella still attached to the moss(Patterson 1982).