sand sifting... I know a beaten topic!!!

[fresh]

Hi all,

I know this has been asked MANY times, and even I must have asked it somewhere along the way... However, I do have a sand sifting problem, and would like to solve it somehow.

I have tried the strawbery conches (2) and have tried the nassarius snails (10+), but my sand has never looked very clean!!! Both my conches have died (had them for a year) and my nassarius are always hiding... never get to see them clean...

I need help. Should I try a sand goby? a sand star? a cucumber (i know they can be really BAD if they die)?

I have a 72 gal with 5" of dsp and would like a GOOD sand sifter. I am contemplating going bare bottom just because of the lack of a clean sand bed!

Let me know.

Thanks.