Yoour tank is fully cycled if your ammonia and nitrites is zero. Right now you have enough bacteria to take care of your ammonia, however the bacteria that takes care of you nitrite is still multiplying. This is the reason for 0 ammonia and 1 ppm ( I think that is what you said your reading was) nitrite. Don't worry, it will not be long before you nitrite reads zero also, just don't add any fish right now or you might throw your tank into full cycle again. I estimate a max of 2 weeks b4 you are completely cycled. Happy fishkeeping.