Snapping sounds in my tank

[Toolman]

The three fish I lost were all smaller, I also have an large anenome crab as well that I just added. Could he be the culprit ?? Maybe I will throw him in the sump and see what happens ??

[Toolman]

I found the carcass of the crab with one very LARGE claw and the snapping has seemed to stop, I don't know if it was the large anenome crab that got him but if he was the culprit then good riddance...........