Yeah these are peps for sure...gathered locally. They wiped out all aiptasia that hitchhiked on a maricultured coral. Now I guess they're tasting what else is available. Usually, I see/don't worry about shrimp and crabs on the corals...grazing and what-not...but this guy, and I witnessed it repeatedly, was digging in the polyp's hole, rounding it out some, and consuming the polyp. Though the coral is definately stressed right now, I haven't seen any shrimp on it this morning.