I.D Please

[j.and]

I have alot of clusters of what look like small feather dusters and was wondering exactly what they are.
Also have some green polyps that are all connected and was not sure what kind they are.
In pic 8 is that a grey sponge??
I picked up some live rock and it seems to have quite a few sponges and feather dusters on it and was just looking for some info.... thanks!
John

 

[Herefishyfishy]

Pic 1 see some feather colonies
Pic 2 is a nice zoanthid colony
pic 8? (3) hard to tell what part of the pic you are referring to

 

[Curtswearing]

On picture 1, I cannot tell if the fluffy portions are on stalks or not. If so, it could be a form of colonial hydroid. http://www.reefs.org/library/aquarium_net/1097/1097_2.html

Picture 2 is a seamat coral (palythoa).

 

[j.and]

In pic 3 I was talking about the small grey area with the siphon looking part on it.