If your nitrates are 0, I would say the answer to Flutter's question is "No".
In which case the answer to your question is also "No". You need to build up 2 colonies of bacteria in your filter which will detoxify the ammonia produced by your fish. In order to do this, you need to provide these bacteria with a source of food, which is ammonia. There are 2 ways of doing this.
The first is to add some fish. Whilst these bacteria are growing, basically your fish are swimming round in a tank full of their own waste. Now, no-one in their right mind would ask you, as a human being, to sit in a bath filled with your own urine. I personally think it's unreasonable of you to expect your fish to do so either.
So, the second way of growing your friendly bacteria is to dose your unfishy tank with bottled ammonia, the stuff you get from Homebase to do some serious cleaning, the stuff that stinks to gawd-knows-where.
There is an excellent guide on exactly how to do that in the Beginners Resource Centre, which you will find here.
http/www.fishforums.net/index.php?/topic/277264-beginners-resource-center/
You want the article entitled "Fishless Cycling".
WHen you're done with the real process of cycling, then you can add all the fish you want. Quite literally.