Oh, honey. I know how hard this had to be for you. I know how much you love that fish!

I'm very proud of you for doing the unselfish thing and thinking of your pet's welfare and health. There are a LOT of people in this world that don't do that ... they don't want to have to bear the temporary sadness it will cause them. Good for you for being a bigger person than that.

IMO, you ought to clean and cycle your tank for longer than a week. I'm really not sure a week is enough time, especially if you were already having ammonia problems.