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Algae
( Added:Fri Apr 28 2006)
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| Almost every aquarium is plagued at some point by an "algae bloom." "Algae blooms" can be fueled by excess light, especially sunlight, and excess nutrients,
especially nitrate and phosphate buildup. Thus "algae blooms" can often be prevented by regular water changes and placing the tank away from direct sunlight.
There are several types of algae common in the aquarium: |
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Algae and Fungi
( Added:Fri Jan 13 2006)
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| The algae comprise several different groups of
organisms, which are not in the kingdom plantae but in
the kingdom protista, that produce energy through
photosynthesis. The most conspicuous are the seaweeds,
multicellular algae that often closely resemble terrestrial
plants, but as stated above are not plants, found among
the green, red, and brown algae. These and other algal
groups also include various single-celled creatures and
forms that are simple collections of cells, without
differentiated tissues. Many can move about, and some |
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Aquarium
( Added:Fri Jan 13 2006)
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| An aquarium (plural aquariums or aquaria) is a
clear-sided container (typically constructed of glass or
high-strength plastic) in which water-dwelling plants and
animals (usually fish, and sometimes invertebrates, as
well as amphibians, marine mammals, and reptiles) are
kept in captivity, often for public display; or it is an
establishment featuring such displays. Aquarium keeping
is a popular hobby around the world, with about 60
million enthusiasts worldwide. From the 1850s, when the
predecessor of the modern aquarium was first developed
as a novel curiosity, the ranks of aquarists have swelled
as more sophisticated systems including lighting and
filtration systems were developed to keep aquarium fish |
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Biological loading
( Added:Fri Jan 13 2006)
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| Biological loading is a measure of the burden placed on
the aquarium ecosystem by its living inhabitants. High
biological loading in an aquarium represents a more
complicated tank ecology, which in turn means that
equilibrium is easier to perturb. In addition, there are
several fundamental constraints on biological loading
based on the size of an aquarium. The surface area of
water exposed to air limits dissolved oxygen intake by the
tank. The capacity of nitrifying bacteria is limited by the |
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Cycling
( Added:Fri Jan 13 2006)
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| New aquaria also do not usually have the required
populations of bacteria for the handling of nitrogen
waste. In a process called cycling, aquarists cultivate
these bacteria as fish and other producers of nitrogen
waste are gradually added to the tank over the course of
several weeks. Aquarists use several different methods |
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