Yes, i saw that fiji rock. Is it good stuff for corals (zoanthids and stuff like that)?

Also, is it good for filtration in my sump? If so ill get 90 pounds of it. 180 is much cheaper for 90 pounds then the 220 i was looking to spend on the alor live rock i believe it was.

Also, should i/can i get un-cured rock? My tank is not up or cycled yet so it would be put in during the cycle period. (Un-cured fiji from liveaquaria)