Very cool idea.I went so slow with my set up and curing of rock,that I didn't add a fish until 6 or 7 weeks( a bi-color blenny). That was just for a hair algae outbreak. The clean up crew just couldn't keep up with that stuff(emerald crab,snails,hermits and a brittle star).
I've heard that if you put some sugar in your tank that the corals will perk up. I have never tried it.