apple snails live in water. they prefer water temperatures between 18°-28° celsius, or 65°-82° fahrenheit. they eat things like fresh fruits, lettuce, other vegetables, algae and wafers. however, they are not called apple snails because they eat apples. they get their name from the fact that one species of apple snails can grow to be the size of an apple. apple snails are also common aquarium pets because of their size. they also prefer to be with other snails. they are good pets because they can live in almost any water condition, for example, water with low/high levels of oxygen, and various temperatures. although they can live in water with high oxygen, this makes them move slower.