Maple leaves are a favorite treat for Isopods!
They are much thinner than other popular leaves such as Oak Leaves, and will break down in a humid terrarium much faster.
Due to their super delicate nature when dry, they break very easily when packaging, as such we don’t expect them to remain whole or be as ascetically pleasing as other leaves in a terrarium. (Expect lots of broken, crumbly leaves in a bag)
Isopods absolutely love them, they don’t care what they look like, and will readily chow down on a pile of Maple Leaves.