The NitrogenCycle The final step in setting up an Aquarium before adding livestock, Also the main step a lot of new comers seem to miss. I thought I'd write up a thread explaining what it is, why it's important etc. Commonly referred to as; Cycling, Nitrification, Biological Cycle, Breaking in. For this thread we will refer to it as "Cycling" In simple terms; A cycle is a process in which chemical reactions take place to convert Ammonia into Nitrite which is then converted into Nitr