Just leave it be, don't even test. The ammonia level is likely inaccurate. It's Thursday here in AZ. I imagine by next week you can add the clown pair.Another question on this while we are here. Should I do another water change to dilute the amonia a bit and raise the ph as sitting between 7.8-8 or just leave it be for a few days and see how things go?
Remember businesses must make sales to stay in business, even the quaint local fish store.

