Confusa or Spongodes?

[Daimyo68]

Far right, uncertain of which it is. I think Confusa because of the blueish rim

 

[Frick]

Confusa. The color shouldn't matter, the ridges on the branches are the give away.
http://coral.aims.gov.au/speciesPages/species_metadata/0458/view#

 

[fisherman561]

Confusa if it was spogodes the growth would have more height and nubs like a cypress tree roots.