what at least 3-4 weeks, not just a week after adding the clowns.
ammonia zero
nitrites zero
nitrates under 20
temp 78-82
sg, depends 1.018on the low if no inverts, 1.028 as the high, I kept mine at 1.024
ph. I like like 8.2
I don't know about the others
Normally, do a water change after the cycle and test the water. If every is good, wait a week, test again, if all good add your fish.