Well I wanted to try out my own "fishless" cycle. When I first got my new 120 I had to reseal the tank because it leaked and then had problems with the stand. But when I picked up my filter I threw it onto an established tank and ran it for a couple of weeks to get things going there. Next after I was able to actually set the tank up, I grabbed my two turtles and gave them a vacation from home. I put them into the tank that needed to be cycled and they have been in there for almost a week (tomorrow will be a full sunday to sunday). And I just took my readings:
Ammonia: 0 ppm
Nitrites:
Ammonia: 0 ppm
Nitrites: