A dying question?

[kien]

Originally Posted by shimmy

If there is more to cycling then watching the chemical levels rise and fall back and forth till there is no more change even after adding new stuff then I need to know more.

There are two answers to this cycling question, the one that people want to hear, "cycling can be done in a few weeks", and the one that people don't want to hear, or choose to ignore (with varying degrees of success). While in theory a tank starts and can end its cycle within a few weeks, I personally would not consider it cycled, others may disagree. While the ammonia-nitrogen cycle enables fish and other living things to live in the tank without those toxic chemicals, this does not necessarily mean that the tank is finished with the FULL cycle in my opinion.

This is where the second and less favourable answer comes in. The FULL cycle can take up to a year. More things continue to go on in the tank after the initial cycle. For example, silicon and phosphates from live rock and sand are slowly released. This stage is where we tend to see algae and diatom blooms. The presence of these nuisances are an indication that you have silicates and or phosphates. This is where the tank is really JUST starting to balance itself out, as stuff leaches out, they are consumed by nuisance algaes until they are eventually and hopefully depleted. All the while, your bacterial culture is trying to keep up with your bioload (feedings, poops, pees, etc). The act of feeding can also throw chemicals into your tank. It can be quite a turbulent time for the tank. The more fish/critters, the more stress you add which the tank needs to account for. This is why everyone says, "take it slow". Give your tank and everyone in your tank time to adjust.

Anyway, not meaning to sound like a know it all (because trust me, I'm far from knowing it all! :-D ).. just sharing my experience with my tanks and cycling over the years. There will surely be other opinions on the matter.