I have this growing on my tank.

[Imianman]

Have this growing on the inside of my tank. I'm taking the easy way out and asking if anyone here knows what it is?

 

[Reeffanman]

Can you be a little more specific on what you want us to identify I see a few things in that pic

 

[Imianman]

Sorry, I circled it in this picture. It's white and curled with what looks like tentacles at the fat end. I'm trying to get a better picture but it's so small I'm having trouble.

 

[mr_X]

it looks to be a small feather duster worm. they build a tube out of calcium and filter feed.