Anyone familiar with the Fortress Starfish? At least I believe that's it's name. It's big, it's beautiful, and it eats corals. I saw it in a documentary.
Why fly over to Australia when you can get them right here in Hawaii.
One of the projects that I am working on is a propagational study of the Triton snail which is the main predator of the crown of thorns. And yes, they destroy reefs. I have seen them in excess of 18'' here.