![]() ![]() This increases the amount of ammonia produced in the relatively small volume of the aquarium. Aquariums are usually much more densely stocked with fish than the natural environment. In the natural environment these nitrates are subsequently taken up by plants as fertilizer and this does indeed happen to some extent in an aquarium planted with real plants.Īn aquarium is, however, an imperfect microcosm of the natural world. Bacterial processes oxidize this ammonia into the slightly less toxic nitrites, and these are in turn oxidized to form the much less toxic nitrates. Excretia and other decomposing organic matter produce ammonia which is highly toxic to fish. Proper management of the nitrogen cycle is a vital element of a successful aquarium. Filtration is a common method used for maintenance of healthy aquaria.īiological filtration and the nitrogen cycle A large shower biological filter designed to maximize the beneficial effects of the nitrogen cycle, in a koi pond ![]() As the degree of contamination rises, the risk to the health of the aquaria increases and removal of the contamination becomes critical. These waste products collect in the tanks and contaminate the water. Another source of waste is uneaten food or plants and fish which have died. Overview Īnimals, typically fish, kept in fish tanks produce waste from excrement and respiration. Furthermore, aquarium filters are necessary to support life as aquaria are relatively small, closed volumes of water compared to the natural environment of most fish. Aquarium filters remove physical and soluble chemical waste products from aquaria, simplifying maintenance. Aquarium filters are critical components of both freshwater and marine aquaria. ![]()
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