Good or bad?

[IndianaReef]

These 3 lil guys have showed up in my tank. One looks to be an anenome (what species), one a coraline algae (what species) and the other I'm not sure but I need to know if this is accurate, and if they are good or bad. Thanks

 

[Redfoxtang]

I’ll take a stab at it and I’m sure others will chime in.
1.Ball anemone or Majano
2. Not sure what I’m looking at but it does look like Xenia and maybe Cyano
3. Looks like some kind of Palythoa

 

[PTXReef]

I’ll take a stab at it and I’m sure others will chime in.
1.Ball anemone or Majano
2. Not sure what I’m looking at but it does look like Xenia and maybe Cyano
3. Looks like some kind of Palythoa

+1 on 1 and 2.
3. Looks like a dead LPS skeleton to me? unless I am looking at the wrong spot. Clearer pic would help!