Help ID this on live rock

[ptrahan]

Gulf of Mexico live rock around 14 months old. This has been growing. Stony skeleton

 

[Roatan Reef]

Gulf of Mexico live rock around 14 months old. This has been growing. Stony skeleton View attachment 2866580

Does it have long flowy polyps that extend at night/day?

If so it's a Cup Coral.

Does it look like this at night?

I bought a piece of Live Rock from Tampa Bay Saltwater...and it came with this type of Cup Coral.

 

[EeyoreIsMySpiritAnimal]

Following

 

[ptrahan]

Polyps are short. They extend at night. Corallites are approximately 1.5-2 mm across. Growing slowly.