What's going on here? Aiptasia?

[bbeck28]

This frag has seen better days. Looks like bubble algae in the back, but what the upside-down umbrella looking things? Aiptasia?

Advice on how to deal with this (both issues)?

 

[neonreef3d]

Those are feather dusters… reef safe

 

[G Santana]

Definitely duster.

 

[Dburr1014]

Tweezers for the bubble algae. Rock, twist and pull.