old dead live rock

[SeaHorse_Fanatic]

How big is your tank? You should hose it down and then stick it in a separate tank or container of sw with a few pieces of LR to seed it, but it could take months to turn dead rock into LR. Unless you tank is huge (300+g with 250-300 lbs of LR in it already), I wouldn't put it in the tank yet until its seeded & such. It might not be so good for an existing tank to dump that much dead rock in.

Anthony

[marie]

I would put it into a rubbermaid trashcan filled with saltwater, a heater, a powerhead, a piece of liverock out of your tank and cure it for a couple of weeks before adding to your display tank.