Reptiscape Guava Leaves are an excellent leaf litter that you can use in a terrarium, vivarium or aquarium. They also make a tasty treat for your isopods and springtails in a bioactive terrariumGuava leaves come from the Psidium guajava (Guava Tree) which produces a delicious fruit eaten by many. In some parts of Mexico and Cuba, the guava wood and leaves are used in barbecues to help smoke meat.Using Guava Leaves in a TerrariumLeaf litter not only helps with providing a naturalistic appearance, the leaves also provide hidin..