This fast growing low-light coral is very hardy and often used by hobbyists to cover the base or wall of their aquarium, or to encrust over shaped ornaments. The orange on this frag tile has been infected with some green pigmentation that you can make out on the left of the picture. This is a large 7cm frag tile - a nice showpiece or propagation candidate.

Photos are of the same piece under G4 Radions at 20k and 14k colour temperature.