Need help on ID of new aliens in my tank.

jmaggi

New Member
My tank has been running for almost a year now with every thing running smoothly, it almost takes care of it self it has ran so well.
However with in the last 2 weeks these little albino aliens have been popping up all over my tank. the first is some sort of little white tube mini feather duster looking thing that just sits there, doesent seem to be sensitive to movment or light. the second lifeform looks like white mini snails but they seem to grow on the tank glass, rock, everything overnight, and they are hard as rock. the 3rd growth is on my live rock, and this has a real cool kind of coral/tree root look to it. this is also white and tube like, might even seem to be sort of hollow.
They dont seem to be affecing the fish, and the fish dont bother the aliens. Can some one please tell me what these things are.
Thanks
 
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