What is this please?

[kayleighc1988]

 

[sunken3]

a barnacle on the left.. maybe a nem on the right... hard to tell from the pic what type.

 

[MoshJosh]

a barnacle on the left.. maybe a nem on the right... hard to tell from the pic what type.

Barnacles to the left of me, corals to the right. . .

Cup coral it I am not mistaken. . . maybe phyllangia americana

 

[kayleighc1988]

I googled and have to agree I think it's a cup Coral it's on the underside of gsp but I want to glue my it to the back of tank will it kill it if I remove it (new to saltwater)

 

[Rmckoy]

I googled and have to agree I think it's a cup Coral it's on the underside of gsp but I want to glue my it to the back of tank will it kill it if I remove it (new to saltwater)

Generally speaking ..

If something is growing in one location it’s happy …
And moving it will always chance killing it .

I personally would leave it there at least until it grows a little more .