Chances are all the bacteria that was alive in it is now dead. Especially if it was frozen in checked luggage. I would wash it and then you could add it. Simply throw it into a bucket and rinse it with RODI water until the water runs clear. Maybe give it a little rinse with saltwater and then add it, just to flush out the freshwater.
Last edited by Scythanith; 11-03-2018 at 06:32 PM.
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