I set my tank up with livestock in 3 days, no problem. Dry rock and dry sand. Put in 4 fish + clean up crew and a red shrimp after 3 days but unfortunately 1 of the fish died (jumper). No other deaths or problems associated with the tank and it's been running smoothly for 6 months now. I can actually see it being done in one day by seeding live rock and bacteria in one day, as long as it's not too fully stocked. Waiting a month or two to cycle, imo, is ridiculous. Especially if you're making it a fish only tank.
