Hi
Water tests are very unreliable if they are hobby grade.if U use gravel or sand only as a base layer and mature filter plus floating plants it is possible to be ok to add some hardy fish after a week.Have in mind some fish are more delicate and need mature aquarium.I personaly wait about 4 weeks before adding fish and stock few at a time.It can dusturb the tank balance putting large bioload.Give more details about your setup please.
Regards Konsa