Aptasia or Duster or something else?

[Fishtastrophy]

On the base of one of my coral plugs (next to a sponge, I think) I found the below thing. Sometimes it retracts, it's been about the same size for a month or two now (and maybe before and I hadn't seen it).

Any thoughts? Thanks!

 

[Reefing102]

Looks like a micro duster. Good guy

 

[Sharkbait19]

Agree it’s a duster. Good guys!

 

[Fishtastrophy]

Thanks guys! Was hesitant to move this plug out of observation and into DT.

 

[Sharkbait19]

Thanks guys! Was hesitant to move this plug out of observation and into DT.

Should be okay!