Caring for your Giant American Millipede
American Giant Millipede
(Narceus americanus)
Basic Information:
The American Giant Millipede is a hardy, slow-moving detritivore native to forests across the eastern United States, where it lives among leaf litter, rotting logs, and moist soil layers. Known for its smooth, cylindrical body and dark brown to black coloration, this species typically reaches 4–5 inches, though some individuals grow slightly larger. They are peaceful, non-aggressive invertebrates that prefer dim environments and are most active at night, making them excellent candidates for bioactive terrariums or educational displays. With proper conditions, they thrive in captivity and are very easy to maintain.
Lifespan:
5 to 7 years in captivity
Sexing:
As with most millipedes:
Males possess modified legs (gonopods) on the 7th segment.
Females have uniform walking legs across all segments.
Sexing is easiest when gently viewing the underside while the millipede moves.
Size:
Up to 12–15 inches (30–38 cm) long
Enclosure:
Single Adult: Minimum 10-gallon tank or larger
Groups: 15–20 gallons or larger.
Secure, ventilated lid to prevent escape
Deep substrate (4–6 inches) for burrowing, such as coconut fiber or organic soil
Include leaf litter, bark, and hide spots for enrichment
Substrate:
Use Critters, Reptiles & Exotics ISOPOD & MILLIPEDE Substrate to ensure a proper food source, and humidity level.
Lighting & Temperature:
Ambient Temperature: 70-75°F
No special lighting required; avoid direct sunlight or heat sources
Humidity:
High humidity preferred, around 65-75%
Mist enclosure lightly every few days
Provide a shallow water dish for hydration.
Food:
Herbivorous detritivore feeding on decomposing leaves, fruits, and vegetables
Offer fresh vegetables like carrots, squash, and leafy greens
Calcium-rich sources like cuttlebone or calcium powder can be added occasionally.
Handling:
Generally safe to handle gently but avoid stressing the millipede
Wash hands after handling, as millipedes can secrete mild irritants
When threatened, African Giant Millipedes curl into a tight spiral to protect their vulnerable underside, showcasing their armored segments.
The American Giant Millipede is a wonderful option for anyone seeking a calm, low-maintenance, and eco-friendly pet. Their gentle nature and fascinating behavior make them perfect for beginners, classrooms, or bioactive hobbyists who enjoy observing natural cleanup crews at work.
Are American Giant Millipedes available at a Local Pet Store Near Me?
If you're in Montgomery County, Maryland, you're just a short drive from Critters, Reptiles & Exotics in Frederick, MD, where you can check availability and get expert guidance on substrate, enclosure setup, and millipede care. There’s always a new adventure waiting at Critters, Reptiles & Exotics!