If the live rock came straight out of the other dude's tank then chances are that it has already been cycled. The big thing to watch for is a cycle (ammonia and nitrite) in your display tank. I'm going to venture a guess that you won't see much of one as the rock you're using probably has enough nitrifying bacteria. However, having said that, since your tank appears to be quite new (like less than a week?) I would hold off on putting anything in the display tank for a few more days. Test Nitrite and Ammonia again in a few days to see if there is any rise in either. You probably won't, but the rock did travel 3 hours so there is a chance that there was some die off that may cause a mini-cycle (slight elevation in Ammonia and nitrite).
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11-19-2014, 06:16 PM
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