Sea Squirt in my Sun Coral?

[jonboyb]

Recently picked up a large sun coral and when I bought it it appeared to have a little dark spot between a few heads that I assumed was an area of flesh recession and algae growth. However, after acclimation, placement, and feeding, I noticed the dark spot opened up and is 2 beautiful deep red tubes that I think to be sea squirts. Sun coral is super happy and seems unaffected (it is closed in the pics.....it goes to sleep around daybreak and is ready to eat and open by about 6 pm). Can someone confirm? Pic not great.

 

[melosu58]

If it looks tubular then it could be a sea squirt or tunicates. Hard to tell from the pic.

 

[jonboyb]

During the day when the sun coral is retracted I SWEAR I can see a closed clam shell in that hole. I wonder if it is a baby clam of some sort and what I think to be "tubes" is just the mantle expanded. That would be awesome as well