'Atison's Beta Food' made by Ocean Nutrition, Aqua Pet Americas, 3528 West 500 South, Salt Lake City, UT 84104. Ingredients: Fish meal, wheat flower, soy meal, krill meal, minerals, vitamins and preservatives. Analysis: Crude Protein 36%; Crude fat 4.5%; Crude Fiber 3.5%; Moisture 8% and Ash 15%.
Upon observing my micro-aquarium this week, I noticed a number of motile and non-motile organisms. Plants A and B tend to remain stationary, while other features move about and around them. There were many rotifers moving about in the aquarium; from their shape and size, I have identified them as the microinvertebrate, daphnia. They are mostly at the top, feasting upon the beta food pellet added by Dr. McFarland; I have seen an estimated forty to fifty of them in the microscope. However, they are also moving in and out of the plants, seeming to feed on them as well. The rotifers are fairly colorless, and they have tail-like flagella trailing behind as they move. Other organisms I have documented are green colored paramecium. They congregate around the beta food pellet along with the numerous rotifers. The last moving organism I could see looked like a planarium. It was located within the beta food pellet only barely moving.
As for dead organisms, there have been none that I could record. The organisms seem to avoid the soil at the bottom of the aquarium, and the majority of the "action" is towards the top.
Below are examples of the paramecium bursaria and the daphnia that I have seen in my aquarium.
Citations:
Daphnia: http://supasi.wordpress.com/daphnia/
Paramecium bursaria: http://www.mdfrc.org.au/bugguide/display.asp?type=2&class=1
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