Need some hitchhiker ID

[C. A. M.]

Bought first zoas and found some hitchhikers. They look like feather dusters but not sure. The fans sway with the current. Took the pic under actinics. Tried to use a flashlight to get a white light view and they retracted into their tubes. I outlined the tube on the largest one. Just want to be sure they are not vermatids or something else not so desireable.

 

[C. A. M.]

Dipped in Bayer for 12 minutes yesterday when I got them.

 

[C. A. M.]

Another observation. The "fans" are flat on a single plane. They do not spread in all different directions.

 

[reef lover]

The small ones a duster. Not so sure on the big one looks hydroidish...need a pic with less blues.

 

[C. A. M.]

Got some shots of the tubes while retracted and then the larger one opened up a few minutes later.

 

[reef lover]

Both are feather dusters with the better pic.

 

[C. A. M.]

Thank you for the ID. It’ll be interesting to see how they develop.