I have several large live rock pieces that are fully cured. I moved into a new tank about 6 months ago and have extra pieces, one very large show piece shelf rock, probably 20" long and full with neon green mushrooms, its a real nice piece. other pieces are round and coraline encrusted and have been in my tanks for the last 3 years and never been out of water since. txt me 214-663-4140 if interested.