[bertoni]

Nassarius snails only eat leftover food and the like. They are not herbivorous. Hermit crabs are opportunistic, but they don't crawl on the tank surfaces, so they won't do anything. At some point, I might add a Trochus snail or two and see how it goes, or I might just use a magnet. Adding too many snails just leads to starvation, and magnets are easy to use. It's a personal choice. I do like watching snails, though, for some reason.