Hi...I decided to add Pipe Organ (or Organ Pipe) coral to my system. The polyps seemed to open up nicely and I have it about 2/3rds the way up on my LR. Interesting, you wouldn't think that it is technically classified as a soft coral since it has a calcium skeleton, but it is. Has very nice polyps. Anyone else out there have one and what kind of colors do you have? Mine almost has a metallic green sheen. SH