Nitrogen Cycle

[AndrewP]

I not have a tank at the moment but I am looking to start one. I have read about the nitrogen cycle and I have one question. When can I start adding fish after the nitrate levels go down? (I think that's the last step)
Thanks

Edit: i am planning to do a fish less cycle

 

[nirbhao]

Once your tank shows 0 ammonia and 0 nitrites.

Here's a good article-
http://injaf.org/beginners-guides/t...s-cycle-getting-your-aquarium-ready-for-fish/

 

[54seaweed]

this article should answer every part of your question with detail
Guide to Starting a Freshwater Aquarium - Aquarium Advice