Acanthastrea (or Acans for short) are a colorful and popular coral imported mainly from Australia and Indonesia. Relatively recently several members of this Genus were reclassified. Acanthastrea lordhowensis was moved over to into Micromussa and Acanthastrea bowerbanki was reclassified into Homophyllia. Still, the hobby regularly still refers to both of these corals as Acanthastrea. Acan corals are more tolerant of parameter fluctuations compared to other SPS corals, making them an excellent choice for reef tanks that may experience minor inconsistencies. However, stable water conditions are always recommended for optimal growth and coloration: Calcium: 380-450 ppm Alkalinity: 8-9.5 dKH Magnesium: 1250-1350 ppm Nitrates: 5-15 ppm Phosphates:
