Aussie fungia?

[drock59]

 

[Frick]

With multiple mouths it can't be Fungia.

Here are some of my guesses;

Diaseris fragilis http://coral.aims.gov.au/speciesPages/species_metadata/0133/view#
Halomitra clavator http://coral.aims.gov.au/speciesPages/species_metadata/0908/view#

 

[robs.mark]

Diaseris i believe.

 

[drock59]

Yep. That is it. Thanks for the information.