What is on my coral?

[christa1421]

I see bubble algae on 1 of them and I’m not sure what the rest is. Vermetid snails?

 

[EricR]

Vermetids in several of the pictures,,, not sure what's in pic#s 2-3

 

[Bucs20fan]

+1 to vermetids, not sure about 2 and 3 also.

 

[Tired]

Pics 2 and 3 look like bits of flesh stretched away from the mushroom coral polyps. IIRC they do that sometimes while moving, eventually leaving behind chunks that grow into whole new mushrooms, though I've never seen pictures of them stretched out like hot cheese.