Tree toads generally eat a variety of insects. You will be surprised to know that tree topes living in the wild also eat fish. A tree frogs diet is a little different and more varied then that of a frog that lives on land or in the swamp. They eat gut-loaded crickets, their own miniature tadpoles, guppies, spiders and worms. Tree frogs are a member of the Bufonidae family which comprises of 300 odd different species. Frogs, toads and tree toads are all members of the same family. Even though they are called tree frogs, you should not mistake their diet to be greens, fruits or vegetables. Tree frogs do not eat any kind of leaves either.