Something to sift sand that won't jump out, or eat the microfauna?

[marie]

I have a few hundred thousand hitchhiker cerith snails combing my sand. They do a pretty darn good job too but they keep climbing up the glass at night, making it hard to see into the tank

[andresont]

Conches are good also.
However unless you are in florida and can get bio loaded sand full of worms i would go BB.
JMO

[DanG]

my strawberry conch has been great. never touched any coral or macro.

[michika]

I second the strawberry conch comment. Mine has also been great!

[Kryten]

I third it