It looks like possibly two different species on this frag plug.
Distichopora spp appears to be the orange one. here is what I have found on it:
Image - Distichopora violacea - - Distichopora violacea - ARKive
Lace corals are hydrozoans, and thus have different type of polyps with different functions than anthozoan corals. The polyps of hydrozoans are near microscopic size and are mostly imbedded in the skeleton, connected by a network of minute canals. All that is visible on the smooth surface are pores of two sizes; gastropores and dactylopores. The rows of gastropores flanked by one of two rows of dactylopores are diagnostic of the genus (3). Dactylopores house long fine hairs that protrude from the skeleton. The hairs possess clusters of stinging cells (nematocysts) that can inflict stings on human skin. These hairs capture prey, which is engulfed by gastrozooids, or feeding polyps, situated within the gastropores (2).