Assorted Frag Pack - Chalice CoralsHow to Care for Chalice Coral Frags: (written by Dave Burr) The corals in our assorted Chalice frag pack are easy to keep and grow well in most reef tanks. They are a great choice for adding a splashes of colors and patterns to lower flow, lower light areas of your reef aquarium. Placement: Mount the chalice corals using IC gel glue, or putty, on an exposed rock in the lower half of the aquarium where it will receive moderate flow and indirect light.