There have been murders in my tank!
 

Is there a reason why snails do this? I'm pretty sure it has left it's shell since I can't see the bottom of anything like you normally can. Shell looks sparkling clean.

I don't have anything that would do that in the tank. I have two clownfish that have been with the snails for a while now. I added an arrow crab and a kole tang yesterday, but I don't believe that they would have eaten a snail.

Any ideas?

snails cannot leave their shells, so it must have died and the crab or some other critter (bristle worms etc) cleaned it out.

how bout hermits do you have any of those?

quite possibly it just died tho do you know what kind of snail it was?

http://www.reefhotspot.com/store/ima...Neseriidae.jpg

if it was one of these cerith snails it is quite typical for them to die I bought lots and over time all died.

Yep ...

Just a wild guess though..

The arrow crab is pretty small and figured he wouldn't have done anything since he is so new to the tank.

The snail was a turbo, pretty big too.

No hermits in the tank, didn't want them fighting over each other.

hmm turbos are generally super hardy, I have 3 and for awhile thought they were gonners as I never saw them for 2 months until recently, they must have been doing well cause I got about 15 baby turbos in my sump, did it get hungry maybe run out of food?

Possibly, I always clean up the tank, so maybe I gotta do that less often. So much for keeping the glass clean. The sand is also pretty clean, they do a good job at keeping it together.

Ok, it's not a matter of the tank being clean or not.

I came into work today and the lights were off. I noticed another snail, upside down looking dead.

I turned on the lights after saying "what the f....??". Something darted off in a direction, way too quick for me to notice what it was. I'm thinking some sort of worm??

If anyone has any suggestions, let me know. I need to figure out what the hell is killing my snails.

its the arrow crab

maybe a mantis