Indian Stick Insect

Minimum enclosure for one to three insects: about 20 cm long x 20 cm wide x 30 cm tall, with taller always being better because stick insects hang vertically to shed their skin. As a rule the enclosure should be at least 2x the adult body length in footprint and at least 3x the body length in height. A mesh or well-ventilated glass or acrylic terrarium works well; good airflow prevents mould. Substrate should be simple and easy to clean: paper towel or newspaper on the floor, changed regularly (avoid damp soil, which encourages mould and hides frass). Key furniture is a spray of fresh leafy branches (their food) held upright in a narrow-necked water jar so they can climb and hang; plug the jar opening with tissue so insects cannot fall in and drown. Provide several tall twigs or branches for molting.

Staple is fresh, pesticide-free bramble (blackberry/Rubus) leaves, which most individuals accept year-round. Good alternatives and rotation plants include privet, ivy (Hedera), hawthorn, oak, rose, hazel, and eucalyptus. Offer leaves attached to cut branches standing in water so they stay fresh for several days; replace before they wilt or go mouldy. They drink water droplets, so no separate water dish is needed. SAFETY NOTE FOR THE HOUSEHOLD: several of these food plants (especially privet, ivy, and oak) are toxic to dogs, cats, and children if chewed, so keep cut browse and trimmings out of reach of other pets and small children. AVOID feeding the insect: any foliage that may have been sprayed with pesticide, herbicide, or systemic insecticide; leaves from busy roadsides (pollution and exhaust residue); florist or garden-centre plants (usually chemically treated); bracken and most ferns; and any wilted, mouldy, or unidentified plant. When in doubt, do not feed it.

Temperature: ordinary room temperature of 18 to 25 C is ideal, with roughly 20 to 24 C the sweet spot; no basking lamp is needed and no separate night drop is required as long as the room does not fall below about 15 C. Do NOT use a heat lamp, which quickly overheats and dehydrates them. Lighting: normal indirect room daylight is sufficient; they are nocturnal and do NOT require UVB. Keep the tank out of direct sun, which acts like a greenhouse and can be lethal. Humidity: moderate, around 60 to 70 percent, maintained by a light misting of the leaves and enclosure sides once a day or every other day. Let surfaces dry between mistings; chronically wet conditions cause mould and are more dangerous than slightly dry air. Good ventilation is essential.

This species is happily kept alone or in a group; it is neither social nor territorial, so numbers are your choice. There is no bonding behaviour and no need to pair for company. Sexing is almost never relevant: captive stock is essentially 100 percent female and reproduces by parthenogenesis (virgin birth), so a lone female will still lay fertile eggs. Males exist in the wild but are exceptionally rare in captivity and most keepers will never see one. Handle gently and infrequently: support the body, never pull a clinging insect, and never grab it by a leg, which can amputate.

Enrichment for a stick insect means a naturalistic, climb-rich environment rather than interaction. Provide a varied tangle of branches and fresh leafy browse at different heights so it can climb, forage, and choose feeding spots; rotate the plant species offered (bramble, ivy, hawthorn, rose) to give dietary variety. Ample vertical clearance lets it perform its most important natural behaviour, hanging to molt. Gentle, occasional handling over a soft surface can be part of a child's supervised learning, but the animal gains most from a well-planted, quiet, appropriately humid enclosure. At night you may see natural swaying (mimicking a twig in the breeze), which is normal behaviour, not distress.