What is this

[Chad Sepulvado]

I found this rock under the sand bed of my 125. It is bright pink. Any ideas what it is growing on it?

 

[Lovemyreef2015]

The picture isn't working for me.

 

[Chad Sepulvado]

 

[Chad Sepulvado]

How’s that working?

 

[C. Eymann]

Its works now but picture isnt the best.

my guess is maybe some type of small cucumber?
again, hard to tell with a potato pic

 

[sixty_reefer]

Some sort of algae or sponge, a pic under whites would help