Porcellio Dilatatus “Giant Canyon” Isopods really hold true to their namesake….THEY ARE GIANTS! Definitely the Largest in Our Collection! The are super fast Breeders and can thrive in more of an Arid/Dry Environment than some of the other Isopods we have. Be sure and have plenty of Leaf Litter bc they will go through it super fast!! Due to their Larger Size, we would not recommend putting these guys in a PDF enclosure. Adult Giant Canyons will get to be as big as most Adult Thumbnails, so not recommended to keep with Your Frogs.