Upon the first observation, several organisms could be positively identified. The majority of these organisms were fresh-water protozoa. Those that were positively identified include seed shrimps, water bears, water fleas, and vorticella. There was not a large number of organisms present at this point, but the ones that were observed seemed to be concentrated in the mud level of the aquarium.
Patterson, 1992, Page 209
Patterson, 1992, Page 113
Rainis and Russell, 1996, Page 234
Patterson, 1992, Page 212
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