🐛 Giant African millipede

📊Overview

Archispirostreptus gigas is the giant of the hobby, a docile detritivore that can exceed 25 cm and tolerates gentle handling better than almost any other invertebrate. When stressed it secretes a brownish benzoquinone fluid that stains skin and badly irritates eyes, so always wash your hands after handling and never touch your face.

⚡Ownership snapshot

🧭Temperament & needs

🧠Personality & temperament

Giant African millipedes are gentle, slow-moving detritivores that make surprisingly engaging display invertebrates. They spend much of their time burrowing through moist substrate and grazing on decaying plant matter, and when disturbed they simply curl into a defensive spiral rather than trying to escape or bite. Their calm temperament, impressive size, and long lifespan make them one of the most beginner-friendly 'giant bug' pets.

📜Origin & background

Archispirostreptus gigas hails from the tropical forests and savannas of East Africa, including Tanzania, Kenya, and Mozambique. There it plays a vital ecological role recycling leaf litter and rotting wood on the forest floor.

🏃Exercise & enrichment

Activity is deliberate and low-energy: they climb, burrow, and roam the substrate in search of food, mostly after dark. Enrichment comes from deep diggable substrate, cork bark and branches to climb, and a generous footprint so a large individual can fully stretch and explore.

✂️Grooming & hygiene

The core of care is the substrate — keep it deep, moist, and rich in decaying leaves and wood, spot-clean droppings, and refresh part of it periodically while leaving some old material they can eat. They molt underground and are extremely fragile during this time, so never dig up a burrowed animal, and provide a calcium source like cuttlebone for firm new exoskeletons.

🍽️Diet & feeding

They are detritivores that eat decaying hardwood leaf litter and rotting wood as a staple, supplemented with fresh vegetables and fruit such as cucumber, squash, carrot, and melon. Offer fresh produce every few days and keep a constant supply of dead leaves and a calcium source; mist for moisture rather than using a deep water dish.

🏠Housing & environment

Provide a wide terrarium with at least 10-15 cm of moist, organic substrate — coconut fiber, topsoil, and rotting hardwood leaves — for burrowing, plus cork bark and branches. Keep it warm at about 24-28°C and humid (roughly 70-80%) with a secure lid, misting regularly to maintain dampness. Floor space matters more than height, and a large adult needs a roomy footprint to roam.

🩺Health & lifespan

They are hardy but sensitive to dryness and heat: low humidity causes fatal desiccation and molting failures, while excessive heat or dampness invites problems. Nearly all wild-caught individuals carry harmless commensal mites on their legs, but heavy infestations or fungal outbreaks signal poor conditions. Handled well, they can live an impressive 5-10 years, with the greatest vulnerability during and just after each underground molt.

🎓Training & socialization

They cannot be trained, but they tolerate gentle, occasional handling and rarely object. Wash your hands afterward and avoid your eyes and face, because when stressed they secrete a defensive fluid containing benzoquinones that can stain skin brown and badly irritate eyes and mucous membranes.

💰Cost of ownership

Startup is moderate — a roomy terrarium, deep substrate, hardwood leaf litter, and heating add up more than a simple roach bin. Ongoing costs are low (vegetables, leaf litter, cuttlebone), but the long lifespan means it's a multi-year commitment rather than a cheap short-term pet.

💚Who it's good for

Beginners and families wanting a large, calm, hands-tolerant display invertebrate.

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