I have kept a apple snail for a few years now. I feed him lettuce,carrots,green beans,peas,zuchinni,grapes,apples,pears,etc. I also house a crayfish with him. The other day I had fed a small "rosie" to the crayfish. He did not come out for the fish. The fish had sat for about an hour on the bottom of the tank. Then I noticed the apple snail heading for the "rosie" at break neck speed! LOL The apple snail ate the feeder fish! DO I have the only carnivorous apple snail in the world? Not that I mind it was really cool to see the snail engulf the small fish! Who knew? Or am I just crazy?