LPS - Acans and Blastos

Acanthastra or the Blastomussa are large fleshy polyped stony corals known for their bright coloration sometimes even rainbow markings.  The polyps grow in a flat colony structure that can become quite large. 

Acanthrastra species commonly available include the lordhowensis and the echinata.  The species of Blastomussa often seen in the home aquarium are the wellsi and the merletti.