need help with some IDs (bunch o pics)

[Timmy44221]

Its a 20 gal high tank. current inhabitants are two false percs, a scooter blenny, a turbo snail, and 3 blue leg hermits. Here is what I need help wtih

Full tank shot
http://reefcentral.com/gallery/data/500/140293whole_tank.JPG

"twigs" that came on live rock. Any Idea what they are?
http://reefcentral.com/gallery/data/500/140293swigs.JPG
http://reefcentral.com/gallery/data/500/140293twigs_close.JPG

Also A thing... I have no idea what it is. There is also a spot that look just like it but only one circle instead of many grouped together.

http://reefcentral.com/gallery/data/500/140293big_colony.JPG
http://reefcentral.com/gallery/data/500/140293One_spot.JPG http://reefcentral.com/gallery/data/500/140293colony_w_snail.JPG

Some bubble alge and my dragonite
http://reefcentral.com/gallery/data/500/140293bubble_alge_dragonite.JPG

And lastly. I thougth it was a small clan, but now maybe its a cucumber. It appears to have a tenticle coming out of it. Shouldi get rid of it. I dont want a cuke dieing and killing everything else.
http://reefcentral.com/gallery/data/500/140293clam_or_cuke.jpg

[650-IS350]

The picture with the snail looks like Zoathids... nice..

1st pic looks like red macro algae...

bubble algae NOT good, don't pop.. or else will expell more and create more...

last pic not as close up... need better pics

[Timmy44221]

Ill try. I know the bubble alge is not good, just havent gotten around to removing it yet. I will try to get better pics. Also there is something that looks like blades of grass. I have not seen a pic of hair alge that looks like it, but that all I can figure it is. Also some white fuzzy stuff has developed on a peoce of LR.

[Timmy44221]

bump...any help.

[mikeandjenn99]

Agree with the other ids. From what I can tell of the last pic, it looks like either a nassarius snail, or a conch of some sort. Is it in a shell?