Ok.
Upon further googling, Im stating to think that's not an
Elephant ear mushroom coral which is green in color, but the "Giant Cup mushroom" which sometimes is called "Giant Elephant ear coral" (
Amplexidiscus fenestrafer).
More pics:
1 2 3 4 5.
I don't know if it's of any help to you, but I figure it was worh a shot.
/TT