Getting my first batch of live rock and just wanted to go thru some things so I'm prepaired. I am using it to cycle my tank so it is uncured. So when I get it I am to scrub off the dead stuff in seawater with a new toothbrush, correct? How do I know what is dead and what is live? Is the dead stuff black? This is my first live rock and I dont know what looks like what.
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