In our systems the younger / smaller polyps and those in brighter light are predominantly white or gray, but once mature they show more of a bold red and yellow coloration. Micromussa is a genus of corals that used to be classified as Acanthastrea. Hobbyist often still commonly refer to these corals as "Acans".  

One of the images shows "Small" and "Medium" to give a feel for the size of these frags.  The plug visible on the left coral is 1.25" wide.  Both small and medium corals are on frag plugs.  

Like all the corals currently listed from TerraReef, this specimen is an aquacultured coral.

It is very important that you are aware of the care requirements of these corals before ordering. Please take some time to read some information from a few sources.

This item is a "stock item" meaning the coral you receive may not be the exact one in the picture, but a clone similar in appearance. Sometimes we include images of our mother colonies as well to give an idea of what the corals will grow into under proper care. Approximate size range may also vary between individual specimens.