If my aquarium is a week old, when do I start testing for the cycle? Should I perform a water change at this time or will it mess up the cycling process?
Usually a cycle takes about 4-6 weeks. I would test it about once or twice a week to see where your levels are and if they have gone down. I don't think you should do a water change until after the cycle though.
Thanks for the info. I read that performing a water change during the cycle will prolong the cycle, but I just didn't know if were to be done before the cycle starts.