my live rock!

[fei_chu]

I bought my vanatu live rock from JL aquatics, (55 pounds for my 46 gal bow)about a week ago. My water is filthy(yellow and smells) ive been doing water changes etc. i heard to add carbon to the water for now to clean it up. some of the life of the rock is dying and the coraline algae is turning white. Should i do anything else. take off dying plants off the rock or vaccum out the detritus off the bottom etc. thanks