When you feed your fish, you’ll think you rang a dinner bell, because these snails will come crawling out from the sand bed like zombies from the night of the living dead. But are they really an essential part of the reef cleanup crew? That appears to be where the controversy about this snail resides.
These critters aren’t really appropriate for a bare bottom reef tank. Nassarius snails (or pretty much any small snail, for that matter), are not compatible with hermit crabs, because those arthropods may prey on the mollusks, turning them into escargot and turning their shells into a mobile home.