Any ideas on what kind of acro this is? Someone mentioned they thought it was a stag. It grows relatively fast, but I thought it had to many branches to be a stag? not sure...
I did some searching on A. Horrida and you might be right. It looks fairly similar to some of the pictures I came across. Supposedly at one time it had green polyps and was more purple/blue in color. For me the polyps have always been the same color as the coral (pink to reddish).