Help me id this thing

[JamesDaCookie]

Hey guys, I just saw these things in my tank today. Any idea on what this is?

 

[Dude60415]

Hey guys, I just saw these things in my tank today. Any idea on what this is?

Its a sponge.

 

[tjohnson3]

Hey guys, I just saw these things in my tank today. Any idea on what this is?

Spaghetti sponge

 

[anthonygf]

Spaghetti sponge

Angel hair sponge, I like it better thin.