Keeping Nano Sand White?

[nanosteve]

I'm having trouble keeping my sand stirred & white in a 10 gal. tank. I've got pretty good current in the tank, and my clean-up crew is 7 nass. snails, 1 blue leg hermit, and a cleaner shrimp.

Any suggestions for modifying or expanding the clean-up crew? Obviously a sand sifting star or brittle star is out because of the tank size, anyone got a nano friendly 'secret weapon' for keeping their substrate stirred?