Here's why:
* Snails are herbivores or detritivores. This means they primarily eat plants or decaying matter, not other animals.
* Fish are aquatic animals. Snails are typically terrestrial (land-dwelling) or freshwater. While some snails live in saltwater, they are not predators of fish.
* Snails have different mouths and digestive systems. They are adapted to break down plant matter and algae, not animal tissue.
It's possible you may have seen a snail near a fish tank, but this doesn't mean they are eating the fish. They may be attracted to the moisture or the presence of algae in the tank.
If you're worried about your fish, it's important to keep their tank clean and free of any potentially harmful debris.