Olive snails friend or foe?

[theodo155]

I have 2 olive snails in my tank and at first I thought they were cool but now I am wondering. I had a percula clown disappear in my tank and thoght maybe it jumped out but now I have found it buried under my crushed coral also 2 other snails are gone just empty shells and I see my olive snail is in the process of sucking a 3rd snail out of it's shell. Could these snails be attacking other snails and fish?

[Biggen]

Olives are predatory. While it won't attack fish, other snails, worms, and small clams are fair game.

I'd get rid of them myself...