Reptiscape Black Pepper 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 terrarium. Black Pepper leaves come from the Piper nigrum (Pepper plant) These plants create the berries we love to flavor our food with.Leaf litter helps to provide a naturalistic appearance to a terrarium, they also provide hiding spots for small animals such as dart frogs, reptiles or invertebrates such as shrimp, tarantulas an..