I've always been very, very cautious not to contaminate my big tank with snails from the planted tank, but ... would they eat them? Just regular snails, not mts or anything. I was kindof thinking about a tank in the future with a bed of vallisneria on one end - like you might find in Lake Malawi - and I was thinking about the passengers that might come on a fresh clump of vals. I know you can "bleach" them, just wondering.