when to add more fish

I added my first two fish 6 days ago feeding them twice a day and testing my water regularly. So far, all of my levels are still fine with nothing changing. When can I add more fish? some things I read said 1-3 weeks and others said at least 1 month. BTW I have a 60 gallon tank with a lyretail anthia and a coris wrasse and a clown which I used to cycle (poor decision I know the person I talked to about setting up told me to do that, what did I know!)