ID this coral?

[Shoei]

So someone gave me this said someone gave it to them and nothing changed and after a few weeks it's finally coming out. I think it's a acan? If so any ideas of what kind and any ideas to help bring it back? Pics attached sorry not the best quality

 

[DSC reef]

Looks like a micromussa lordhowensis

 

[C. Eymann]

Looks like a micromussa lordhowensis

+1 lotd of hair algea too OP, I'd get a razor blade and scrape the frag plug of all of that algea.

 

[Shoei]

+1 lotd of hair algea too OP, I'd get a razor blade and scrape the frag plug of all of that algea.

Scrapped off
If this was an acan I believe the rest of the frag was more acans then would it benefit chipping off the old skeleton to give this little guy room?

 

[reef lover]

No they might regrow.