Not sure what this is..???

[CableGuy]

What is the little redish thing in the middle of the rock.[coverattach=1]

Also, all around him covering the rock is this light brown "film" that has little flesh vents. Anyone know what that is??

[iyachtuxivm]

Looks like sponge of some sort.

[CableGuy]

Looks like sponge of some sort.

What does?

The big brown/red thing moves around.. I didnt know sponges move.. but Im not sure what you are talking about.

[demonclownfish]

99.99% sure thats a limpet

[Skyhigh]

99.99% sure thats a limpet

Thats what it is.