Vivid's Rainbow Cyphastrea CoralHow to Car for Rainbow Cyphastrea Coral: (written by Dave Burr) The Rainbow Cyphastrea Coral is easy to keep and grows well in most reef aquariums. They are a great choice for adding a splash of color to lower flow, lower light areas of your reef aquarium. Placement: Mount the Rainbow Cyphastrea Coral using IC gel glue, or putty, on an exposed rock or ledge in the lower two thirds of the aquarium where they will receive moderate currents moderate