Hrmz, LRs are not actually alive. Its the living organisms on it that makes them "live". Rocks that are left dried for a week will proberbly be dead as in most living organisms would be dead. For me i prefer getting LRs from the shops that are full of coralline. Agreed that coralline will grow if water parameters are good but if i can get a good start by getting coralline encrusted rocks, why not? I cycled my tank with uncured LRs and the only grouge i have are the worms that come with it and the die offs that dirty my sandbed. Oh, looks out in the pasar malam thread, there are lots of reefers selling rocks, most proberbly cured and some with quite abit of coralline algae.