Purple, with neon green tips...maybe... it's so strange. The part on the right is encrusted and starting to branch out, deep purple and the tips seem to be bright green on this part of the coral.
Click for bigger image. Under blue LEDs
<A HREF="https://dl.dropboxusercontent.com/u/687231/AcroEncrusting.JPG">
<IMG HEIGHT=350 WIDTH=350 SRC="https://dl.dropboxusercontent.com/u/687231/AcroEncrusting.JPG"></A>
Click for bigger image. Under blue LEDs
<A HREF="https://dl.dropboxusercontent.com/u/687231/AcroEncrusting.JPG">
<IMG HEIGHT=350 WIDTH=350 SRC="https://dl.dropboxusercontent.com/u/687231/AcroEncrusting.JPG"></A>
