Absolutely Fish in Clifton, NJ routinely carries Celestrial Danios.They are at 1080 Rte 46 West, Clifton. You can call them at 973-365-0200 and verify that they have them before making the trip.
BTW, the store has some of the best fish in the area (both fresh and salt). If you are a BAS member, remember to show them your membership card for a discount