* Diet: Snails are herbivores or detritivores. They primarily eat plants, algae, and decaying organic matter.
* Size and Strength: Snails are small and lack the strength to hunt and consume fish. Sticklebacks are much larger and more agile.
* Habitat: While snails and sticklebacks can share aquatic habitats, their ecological roles are quite different. Sticklebacks are predators, while snails are primarily grazers.
In short, snails and sticklebacks exist in a food web, but they are not predator and prey.