2 new discoveries

[r1v2c]

Can any help identify these things?
Pic 1 and 2 are the same thing.
Pic 3 didn't come out very well but they look like little round somethings.

 

[bigarn]

If that's a hard tube that the critter comes out of in pics 1 and 2 they're featherdusters. I have no idea about the third pic.

 

[r1v2c]

i thought it might be a featherduster but what pokes out almost looks like tentacles ?

 

[bigarn]

Tentacles aren't good. Could it be Aiptasia that inhabited the tube? I don't know, that's a new one for me.