Well, there are actually 2 types of bacteria that you need to grow - one that eats ammonia and one that eats nitrites. It takes time for the ammonia-eating group to start producing nitrites for the second group to eat, and then they start to fill in as well.
As long as your tank can eat 1ppm of ammonia and 1ppm of nitrites in 12-24 hours, you're cycled. If you fishless cycled with pure ammonia and were dosing 5ppm at a time, then you probably provided enough food for a fairly large bacterial colony. This means you can probably handle a decent fish bioload right away.
If I were you, I'd test the water parameters now with the fish in and see how your levels are. If you don't have a liquid test kit, go pick up an API master kit. If you're seeing 0 ammonia, 0 nitrites and >40 nitrates, I'd say you're safe to add more fish.