I continued to monitor my ammonium, nitrites, nitrates, and ph weekly.
Your 65 gallon is more than enough to handle about 8 fish initially. Don't be afraid of them dying. The more fish you introduce to your tank, the faster the biological filter will build up. Remember, if there are no fish in the tank then there is no ammonium, nitrites, or nitrates and therefore no reason for the biological filter to become bigger. Adding fish, will cycle your tank faster.