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10:53, 29 October 2007: 601 × 383 (23 KB) Ilmari Karonen {{Information| |Description=Diagram of the nitrogen cycle in an aquarium. |Source=Own work, drawn in Sodipodi and Inkscape by Ilmari Karonen. |Date=2005-10-2
English: Nitrogen Cycle in aquariums. Legend: (1) Addition of food and nutrients, (2) Production of Urea and Ammonia by Fish, (3) Ammonia is converted to Nitrites by beneficial Nitrosomonas bacteria, (4) Nitrites are converted to Nitrates by beneficial Nitrospira bacteria.
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Fishless cycling is a form of "maturing" an aquarium.The goal of the process is to establish a robust colony of nitrifiers, with the ammonia source provided to allow nitrifiers ('beneficial bacteria,' although nitrifiers can also be archaea) to grow and reproduce coming from non-fish sources, hence 'fishless.'
The "silent" cycle is basically nothing more than densely stocking the aquarium with fast-growing aquatic plants and relying on them to consume the nitrogen, allowing the necessary bacterial populations time to develop. According to anecdotal reports, the plants can consume nitrogenous waste so efficiently that ammonia and nitrite level spikes ...
The nitrogen cycle is of particular interest to ecologists because nitrogen availability can affect the rate of key ecosystem processes, including primary production and decomposition. Human activities such as fossil fuel combustion, use of artificial nitrogen fertilizers, and release of nitrogen in wastewater have dramatically altered the ...
A large shower biological filter designed to maximize the beneficial effects of the nitrogen cycle, in a koi pond. Proper management of the nitrogen cycle is a vital element of a successful aquarium. Excretia and other decomposing organic matter produce ammonia which is highly toxic to fish.
This image is a derivative work of the following images: File:Nitrogen Cycle.svg licensed with Cc-by-sa-3.0 . 2009-09-27T05:47:47Z Raeky 800x600 (298078 Bytes) outlines for text