What is this?

[WannaBeReefer]

Not sure what these are, the first pic has 2 different things right next to each other. 1 is brown with a greenish middle (hard to make out) and the other is whitish with a powder blue middle. The second pic is roughly the size of a nickle.

All of them seem to extend at night after lights out. Occasionally they close up all the way into little balls. The 2 little ones look similar to the large one but much smaller.

Any ideas?

 

[Baianotang]

are they not small feather dusters???

 

[WannaBeReefer]

Not like any I have seen.

 

[Anonymous]

Look like inverted mushrooms

 

[hdtran]

2nd picture looks a bit like a zoanthid.

 

[WannaBeReefer]

Thanks,

I have a bunch poping up in various places.

 

[Anonymous]

the color pattern and frills in the better pic make me think it's just one of those brown polyps ... like below. I know it's a lame pic because the focus is a different subject ... but whatever. Does it look like that?

 

[WannaBeReefer]

kind of, the tentacles on this only fully extend at night and it seems like every other tentacle is a stubby one, not uniform like yours. Also, it looks like the stuby ones are on the outside of the longer ones.

 

[Anonymous]

I didnt even see tentacles