i purchased online some cured live rock(fiji) last week.. the pieces were nice shapes and had some red coraline on it but other then that i didn't see much life on there. this was my first experience with live rock, so i am not sure if i should be dissapointed with what i got or if that is expected. alot of the rock is starting to turn white now, should i be concerned? is there anything i should add to the water to promote growth on the rocks? here are some pics of what i got. any insight would be greatly appreaciated!