IMO
Once you introduce something for organic breakdown you start the growth of bacteria necessary for nitrification, which I am sure you already know. There is no need to continue to ghost feed until you reach levels of ammonia, and nitrites that are safe for fish. If you are not going to add fish immediately you then ghost feed to continue the nitrification process until you introduce a bio load with your fish.
Ok,so ur saying now that I have ammonia and nitrites to go ahead and stop ghost feeding and as soon as I have 0 ammonia and nitrayes to add a fish?