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The Nitrogen Cycle in Aquariums – What is It?

  When starting a new aquarium it is important to understand the nitrogen cycle. Many new aquarium owners jump into the hobby of fish keeping too quickly. Before purchasing fish, the aquarium must be cycled. This could take anywhere from twenty four hours to four weeks.   Let's dive right in.   The Nitrogen Cycle Explained   In an established aquarium there are certain bacteria that help the breakdown of ammonia to nitrates. But they are not present in a new tank because they are generated from existing fish.   If there are no existing fish, then there are no good bacteria and no established nitrogen cycle at this point.   The basic principle of the nitrogen cycle is this....

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