Can someone help me identify this

[didou]

Hi,
This is one of my coral that died in only week, there is white stuff on the surface, it's hard like coral squeleton.

Then there is something else under a few of my corals and even on equipment and my tank glass, it looks like black worms with a white hard shell, do someone know what is this?

 

[Gumbies R Us]

The white worms in the second picture are spionid worms.

 

[Shnetts]

my rear chambers are filed with them, im almost positive there some sort of crustacean, ( i may be wrong) but they have never caused any harm to anything living.

 

[didou]

Thanks guys

 

[MnFish1]

They usually do nothing - my guess is that the worms have nothing to do with your coral death. Were the white 'things' visible on the top of your coral? How long did you have it. Those worms are probably throughout your tank - not just on that coral...