I don’t think there is any difference in living environment. They all prefer non-rapid water systems and are very adaptable to the environment. Often there are snails in streams or puddles without fish. One difference I'm not sure about is: field snails/stone snails prefer clean water systems while apple snails are less afraid of dirt, but this is only relative. During the growth process, field snail eggs are transparent and have a jelly-like carrier, and are usually submerged in water; apple snail eggs are pink and usually stick to plants on the water surface. After the snails break out of their shells, the eggs turn white and break. Field snails grow slowly, and personal experience has shown that they can survive for 4 years. Even if they are carefully raised, 2 years is basically the limit for snails. Moreover, snails grow quickly. Field snails generally grow to the size of grapes, and walnuts are basically the limit, while snails can reach the limit in one month. The size of a grape, it can grow to the size of a walnut or even an egg in one summer. The difference in appearance is the key point. Generally speaking, the apple snails are very large and the field snails are very small. The majority of the field snails are 1-1.5cm. Some people must say that the aquarium dealers say this is the golden snail. Yes, the golden snail is the apple snail. In detail, the spiral shell of the apple snail shrinks very quickly from the outside to the inside, both in diameter and angle, while the shrinkage of the field snail is relatively slow. In addition, the shell of the apple snail is very brittle and can be easily crushed by hand, and it will fall to the ground without a hitch. However, the snail shell has a hard texture and cannot be broken when dropped. It is also difficult to burst when pinched by hand. The third difference is the difference in the snail meat: the antennae of the apple snail are thin and long, while the antennae of the field snail are short and thick; the mouth of the apple snail is slightly divided and has two "beard"-shaped organs (equal to 2 pairs of antennae), while the field snail has two pairs of antennae. It is a cylinder (1 pair of antennae). White snails usually gnaw food, while field snails only suck rocks or the walls of glass tanks. Another difference is that apple snails sometimes extend extremely long breathing tubes that can reach the length of the body, while field snails rely on a flap-shaped air sac (a bit like an ear) near the shell of the body. So from this point of view, the ability of apple snails to deal with dirty water should be stronger than that of field snails.