new live rock
 

how much die-off would there be in about 45 mins out of water? bought a 5lb rock, and didnt get home for 45 mins, there shouldnt be too much of a spike in an establised system right?

How big of a system? (how much cured rock?)

Unless it is a nano, no problems. (and even a nano should be fine)

Kind of like low tide for that rock. :)

lol ya I guess. I thought this was a dumb question after I posted it. But yeah, I have a 120G established system, i Only have about 55lbs of rock in there right now.