What is a predator to the Apple Snail?

In nature, Apple snails have a many predators some include: birds, turtles, fishes, insects and crocodiles. This predation has urged the as a species todevelop many defensive structures; thicker shell, larger size, eggs Lane above the water line...

In the home aquarium, they have only a few; assassin snails, flukes, and certain types of loaches.