Anyone know what these white fuzzy worm casing things are?

[Korrine]

http://i248.photobucket.com/albums/gg200/kj23502/sw%20tank/045.jpg

http://i248.photobucket.com/albums/gg200/kj23502/sw%20tank/100_7134.jpg

They are growing all over. The rock, the glass, powerheads. What in the world are they?

[iamwhatiam52]

Pics are not close enough to tell for sure, but they look like pineapple sponges.

[Bongo Shrimp]

+1 for pineapple sponges. Totally harmless, I've got them everywhere too.

[Korrine]

wow a sponge? Wouldn't have thought of that. Thanks :)

[rusty-spoons]

Looks like a very new tank, if so they will go away with time.

[Korrine]

tank up since March :)