Fish missing/ is it worms that come out at night?

[kojack]

Within the past month and a half i have purchased:
royal gramma
2 purple firefish
bi color blenny
manadrin gobie
all of which I saw for about 2 days and they all disapeared at night. I got a flash light and checked out the tank at night after the lights had been off for several hours. Near one of my pieces of live rock were several worms rather large in size almost lookinb like a centiped. Can these worms be eating at fish at night when my lights go off. I think there is something hiding in the rock durning the day and coming out at night and eating my fish.
Please advice please!!!!!!!!!!!!!!!!!!!!!!
100 pounds of live rock

 

[mimzy]

That's a lot of live rock... you could have a mantis shrimp in there...hear any unexplained clicking noises?
Don't think it's the worms... they're usually good detrivores...
Hope you find the culprit!

 

[snailheave]

the worms you describe are bristleworms. they do not eat your fish unless your fish is about to die.

 

[ophiura]

If you could please give us more information about the age of the tank, other tank inhabitants, specific water quality. We need to eliminate some issues first. I assume of course that you have looked in overflows and on the floor behind the tank to eliminate "jumpers?"