On Friday October 22, 2010 "ONE" Beta Food Pellet was inserted into each microaquarium ("Atison's Betta 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%).
The large worm I saw last week in the soil was much more active this time and actually came out of the soil, so I was able to identify it better. It is an insect larvae of the species Chironomidae, also known as non-biting midges. It is segmented, has fore and hind feet, and is pretty transparent everywhere except for the head. The soil has acquired quite a bit of Cyanobacteria growth which just appears as blue-green filaments under the microscope. There are also even more remains of dead organisms at the bottom of the tank than there were last week. Throughout the microaquarium small unicellular organisms can be found. Among these are what could possibly be Euplotes which more quickly and appear to propel themselves by cilia, and some smaller, rounder which might be Colpodium. In the lower left hand corner of the tank there is also a cluster of Epistylin. These have cilia and occasionally move and twitch, but generally are pretty stationary. I have also observed that there seem to be fewer Cyclopses than there were last week, but there are still quite a few Ostracods. The Ostracods have an outer shell which is covered with very small hairs and are generally fairly opaque. Scattered throughout the tank there are a lot more small particles than I remember from last week. I assume these are a result of the pellet that was added breaking down.
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