What is This?

[bluedeuce]

Does anyone know what this thing is, and if it is good or bad. It looks a lot like a snail of some sort, but I'm not really sure. There are a number of them, but this picture is of the largest one that I have seen so far.

 

[Bifferwine]

Please try posting your picture again -- it didn't work.

 

[bluedeuce]

I'm not sure how to add the picture, but it is in the 1st 2 pictures in my phototgallery.

 

[reeffreak]

At first I thought it might be a conch...but not sure what it is now.
Check here(maybe one of these snails might look similiar)
Melev's Reef - Visual Identification

With in doubt..get it out.
Best of Luck

 

[yote]

Looks like its probably a certh snail by the shell.There good,sand to stir up your sand bed.