They establish moderately slowly in a vivarium, and will act as janitors to keep the vivarium clean, as well as a snack that provides a natural calcium boost. They are native to Canada. They have nice, flat orange bodies. They are quite large as adults, but the younger ones are palatable and are eaten by amphibians, invertebrates, and reptiles. These isopods enjoy cooler temperatures and an occasional misting, but do not do as well in an extremely wet environment. We allow space for a moderate moisture gradient, starting with one side of the enclosure having wet NZ sphagnum moss, the middle being moist and mostly covered with leaf litter and excessive levels of bark, and onto the opposite side being completely dry and covered only with leaf litter. This provides the needed space for Isopods to osmoregulate to remain in homeostasis.