The original RG Acanthastrea echinata, this fantastic encruster has been an integral part of our aquaculture success. Dark purple harboring bright orange eyes, rimmed by bright candy-apple green on the growth margins.
Light Requirement: Moderate, middle to bottom of a typically-lit reef
Flow Requirement: Low to Moderate
Aggressiveness: Moderate, slow growing but strong sweeper tentacles
Difficulty: Moderate, demands pristine water quality and space to encrust