Holy Grail Large Single HeadStock Photo: All Auction Pictures Are Our Own Proprietary Stock Photos, Unless Otherwise Noted. Our corals have been photographed using various cameras, filters, magnification levels and or light sources. We try to photograph these corals as accurately as possible & how they look in our coral systems. These corals may look different in your system depending on your light source & light spectrum. Zoas are typically auctioned by the number of polyps per