How much ammonia do I add for a fishless cycle?

u should have your water checked after 3-5 days.so u will know what to increase and what u should decrease.pet stores do it for free i.e water test...i had to put in some ammonia reducer after 3 days of fishless aquarium.and i was ready for fish in 1 week.tested again in a week and it was fine.i hope i helped.