Hammer PM sent.
Rock, i got about 5 of those plate corals after a local reefer took down his tank, He bought a plate coral at the LFS and it grew pretty big, then it died somehow, and when plates die, if you keep the skeleton in the tank, after time you see little tiny plates start to form on the surface of the skeleton, then they get bigger and break off. he had a flat plate skeleton with about 20 baby plates on it.