now i dont want to sound like im trying to sell something here, buti used to work at my local lfs, and we would use a product called reef DNA when we set up any new tnaks or got shipments of live rock in. The Reef DNA is a Marc Weiss product(all of which i love so far)that basically helps to cure your rock, and encourages the grow out of all the little organisms that normally occur on live specimens. This includes sponges, macro and microalgae, and all sorts of other things. AS an experiment, we treated a tank full of dry base rock with this stuff and in like a month, i was amaze at all the life that magically sprung out of this "dead" rock. If you can get soe of this and treat your tank with it and i think you will be surprised as well. Your lfs should carry it if not im sure you can order it online. Good luck an welcome!
Jon