Originally Posted by ghbofurban
It sounds very unhealthy. I'm not an owner of a marine aquarium, but I'm fairly sure that 30 gallons is way too small for a lot of live rock, and four days isn't very much time for the tank to be set up in order to cycle, etc. My assumption is that the live rock is dying, and quite fast.
Live Rock doesn't die unless removed from the tank and let dry out. Live Rock also has die off when in the Curing process, but the entire rock does not die. White is normal coloring for Live rock thas is being cured, it will get some nasty black on it from die off, but thats about it, then it blooms with life.