Tuesday, May 28, 2013

The Nitrogen Cycle


Fish eat food and excrete wastes in the form of carbon dioxide and ammonia.


Carbon dioxide goes to plants and the atmosphere.


Ammonia, on the other hand, is converted by nitrosomonas bacteria into nitrites.


Nitrites are broken down by nitrobacter into nitrates, which are not as toxic to fish as ammonia and nitrites.


Excessive nitrates can be removed by plants and water changes. 





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