Stick Insect Enclosure Setup: Height, Humidity, and the Right Host Plant

Stick insect care is refreshingly simple once the enclosure height and humidity balance are right, this is a forgiving species to house well.

Enclosure Size

A useful rule: length and width should each be at least twice the adult's body length, and height should be at least three times body length. Height is the detail that actually matters most, since it's what allows a proper molt. A single Indian stick insect does fine in a roughly 8 by 8 by 12 inch tall, mesh-topped enclosure; a small group or larger species needs correspondingly more room.

Temperature

Many commonly kept species, Indian stick insects especially, do perfectly well at normal room temperature, roughly 63 to 77F. Tropical species like the giant prickly stick insect prefer it warmer. Supplemental heat is only needed if your space runs consistently cold, and if you do add a small basking bulb, keep it off the mesh top, where the insect hangs, to avoid burns, and turn it off at night.

Humidity

Varies by species, tropical types want 60 to 80%, while Indian stick insects are considerably more forgiving. Achieve this through daily light misting with dechlorinated or distilled water using a spray bottle, combined with an inch or two of moisture-holding substrate, and track it with a digital hygrometer rather than guessing. Avoid both extremes, too little humidity risks molting failures, too much invites mold.

Substrate

Coconut coir, peat moss, or plain paper towel all work, holding humidity and absorbing waste. Replace it regularly rather than letting it build up.

Lighting

No UVB is needed for this species. Normal ambient room light on a roughly 12-hour cycle is sufficient. A grow light is only worth adding if you're keeping live plants in the enclosure or the room is genuinely dark.

Diet Basics

Leaves, and that is the entire diet. Almost every commonly kept stick insect eats washed bramble, the blackberry stems that grow in any hedgerow, and it goes species by species from there: Indian stick insects also take privet and ivy, while rose, hawthorn, oak and eucalyptus each suit different species. Match the plant to the species you actually have.

Cut stems standing in water beat a pile of picked leaves, since foliage kept that way stays good for several days instead of crisping overnight. Block the opening of the water container so nothing can fall in, because a nymph drowned in a jar of stems is the routine avoidable loss in this hobby, and a lid that can rust is not the way to do it.

Wash foliage before it goes in, which takes off pesticide residue and any hitchhiking insects, and replace it before the leaves dry. The invertebrate pesticide hazards guide covers where that residue comes from.

The Non-Obvious Requirement: A Mesh Top

A mesh or netting lid is essential, not just for ventilation, but because stick insects hang from the top of the enclosure to molt, and shedding from mesh succeeds far more reliably than from a branch alone.

Mesh Fine Enough for Nymphs

Newly hatched nymphs are tiny and thread-thin, and they walk out through holes and slits an adult could never use, including the gap between sliding glass doors. Escapes, and the cat or the shoe waiting outside, are a main cause of death for pet stick insects. The working limit is no gap or mesh opening larger than 0.5 mm anywhere on an enclosure that holds young nymphs. Fiberglass or aluminum window screen meets it. Some fabric netting does not hold small nymphs at all, and larger species chew through it.

When a coarser metal mesh is already in place, lining it with fiberglass screen solves the problem without a new enclosure. Check hinges, cable holes, and door seals the same way, since a nymph finds the one gap nobody measured.

Housing Nymphs and Eggs

Nymphs can live in a small plastic enclosure with their food plant, as long as each one can hang about three body lengths clear of the floor to molt. That distance grows with every molt, so it is usually simpler to start in an enclosure sized for the adults the group will become. For scale, a display for up to twelve stick insects runs around 36 inches (90 cm) tall.

• Moving nymphs. Lift them with a clean, dry paintbrush, and do not handle them by hand until they are grown.
• Water for the stems. Wedge a twist of plastic cling wrap around the stems in the water jar so nothing can climb or fall in.
• Eggs. A shallow container with a secure lid, a few tiny air holes, and sand or paper on the floor, checked daily once hatching is due. A light spray once a week helps, and any egg that grows mold comes out and gets cleaned. Eggs take two months to a year to hatch depending on species.
• Burying species. A few species bury their eggs, and adult females of those need a container of damp, peat-free compost about 2 inches deep on the enclosure floor.

Adult size across the order runs from about an inch to more than 22 inches, the spread laid out in the stick insect encyclopedia profile, which is why enclosure height is always set by the species and never by a standard tank size.

Sources & Further Reading