FO, FOWLR< REEF OR AGGRESSIVE?
If no rock, then I would say add your sand, and a few bags of LS, tehn throw in about a 1/2 Lb of shrimp for a few days, the n start monitoring
If you willuse LR, then add your sand adn rock adn fill, then throw in jsut a couple of shrimp, to induce the spike and let-er ride.