Giant African Millipede Care Guide & Terrarium Setup
Introduction
Giant African Millipedes (Archispirostreptus gigas) are one of the largest millipede species in the world, reaching up to 12–15 inches in length. Docile, slow-moving, and surprisingly low-maintenance, they make fascinating display animals for invertebrate enthusiasts of all experience levels. This guide covers everything you need to get started.
Species Overview
- Scientific Name: Archispirostreptus gigas
- Adult Size: 10–15 inches (25–38 cm)
- Lifespan: 5–10 years with proper care
- Origin: Sub-Saharan Africa
- Temperament: Docile, slow-moving, defensive (curls into a ball when threatened)
- Difficulty: Beginner-friendly
Terrarium Setup
Enclosure Size
A single adult Giant African Millipede requires a minimum of a 10-gallon terrarium. A 20-gallon long is ideal and allows for a more naturalistic setup. Pairs or small groups should be housed in 20–40 gallons. Prioritize floor space over height — millipedes are ground dwellers and need deep substrates.
Enclosure Type
Glass terrariums with a secure, ventilated lid work best. Avoid enclosures with large mesh panels, as these allow humidity to escape too quickly. A front-opening terrarium makes maintenance easier and reduces stress during feeding and cleaning.
Substrate
Substrate is the most critical element of the setup. Giant African Millipedes spend most of their time burrowing and feeding on decomposing organic matter in the substrate.
- Depth: Minimum 4–6 inches; 6–8 inches preferred to allow burrowing
- Mix: Organic Topsoil (no additives, fertilizers), Peat Moss
- Additions: Leaf litter (oak, magnolia, or beech), rotting hardwood chunks, and sphagnum moss patches
- Avoid: Cedar, pine, or any aromatic wood substrates — these are toxic to millipedes
Humidity
Maintain humidity between 70–80%. Mist one side of the enclosure every 1–2 days, leaving the other side slightly drier to create a moisture gradient. A digital hygrometer is strongly recommended.
Temperature
Giant African Millipedes thrive at 72–82°F (22–28°C). Room temperature is often sufficient in most US homes. If supplemental heat is needed, use an under-tank heater (UTH) on one side of the enclosure — never use heat lamps, as they dry out the substrate rapidly.
Lighting
No special lighting is required. Millipedes are nocturnal and prefer dim conditions. If you want to observe them more easily, a low-wattage LED on a 12-hour cycle is fine, but keep it away from the enclosure to avoid drying it out.
Décor & Enrichment
- Cork bark flats and tubes for hides
- Rotting hardwood logs for climbing and feeding
- Live or artificial plants for cover
- Leaf litter layer on top of substrate
Feeding
Giant African Millipedes are detritivores — they feed primarily on decaying plant matter. A varied diet keeps them healthy and supports molting.
Staple Foods
- Leaf litter (oak, beech, magnolia — dried and pesticide-free)
- Rotting hardwood chunks embedded in the substrate
- Cucumber, zucchini, and squash slices
- Carrot and sweet potato (in moderation)
- Mushrooms (plain, no seasoning)
Occasional Treats
- Banana and mango (high sugar — offer sparingly)
- Strawberries and blueberries
Calcium Supplementation
Calcium is essential for exoskeleton health, especially around molting. Dust food items lightly with reptile calcium powder (no D3) 1–2 times per week, or place a cuttlebone in the enclosure for them to graze on freely.
Foods to Avoid
- Citrus fruits (acidic and irritating)
- Onion, garlic, and spicy vegetables
- Processed or seasoned foods
- Protein-heavy foods (millipedes are not carnivores)
Feeding Schedule
Offer fresh food every 2–3 days. Remove uneaten fresh produce within 24–48 hours to prevent mold. Leaf litter and rotting wood can remain in the enclosure indefinitely as they are consumed slowly.
Water
Millipedes do not drink from standing water dishes. They absorb moisture through their substrate and food. Maintaining proper humidity is sufficient. If you notice your millipede drinking from condensation on the glass, increase your misting frequency slightly.
Handling
Giant African Millipedes are generally calm and tolerate handling well once acclimated. A few tips:
- Allow 2–4 weeks of settling time before handling a new animal
- Support the full body length — never pick them up by one end
- If they curl into a ball, set them down and give them space
- Wash hands before and after handling — the defensive secretions they release can irritate skin and eyes
- Limit handling sessions to 10–15 minutes to minimize stress
Molting
Millipedes molt periodically throughout their lives to grow. Signs of an upcoming molt include reduced activity, burrowing deeper, and loss of appetite. During this time:
- Do not disturb the enclosure unnecessarily
- Ensure substrate stays moist to facilitate the molt
- Do not remove the shed exoskeleton — the millipede will eat it to reclaim calcium
- Avoid handling for at least 1–2 weeks post-molt while the new exoskeleton hardens
Health & Common Issues
- Dehydration: Wrinkled appearance, lethargy — increase misting frequency
- Mites: Small white mites on the body are usually harmless, but large infestations indicate substrate issues — replace substrate and reduce moisture slightly
- Stuck molt: Caused by low humidity — ensure substrate is adequately moist before and during molting
- Escape: Ensure the lid is fully secure; millipedes are surprisingly strong and persistent climbers
Quick Reference Care Sheet
- Enclosure: 10–20 gallon glass terrarium (minimum)
- Substrate Depth: 6–8 inches
- Humidity: 70–80%
- Temperature: 72–82°F
- Lighting: None required
- Diet: Leaf litter, rotting wood, fresh vegetables, calcium supplement
- Feeding Frequency: Every 2–3 days
- Handling: Gentle; wash hands after
Conclusion
Thank you for reading our guide to Giant African Millipedes. If you have any questions or concerns about your exotic pet that we specialize in, please contact us at scholarlyexotics@gmail.com.
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