Praying Mantis Enrichment: Height Is a Moulting Requirement, Not a Preference

Praying Mantis Enrichment: Height Is a Moulting Requirement, Not a Preference

For most animals on this site, enclosure size is a welfare question. For a mantis it is a survival question with a number attached. For everything else about them, see our complete Praying Mantis care guide.

What the Research Actually Says

Nothing on mantids. The borrow is from the tarantula housing study, covered in full in our Tarantula enrichment guide.

Tarantulas given an enclosure about six times larger with six times as much structure used 77 percent larger home ranges, showed 150 percent greater odds of being active in a novel environment afterwards, were no more active overall, and showed no preference between the two.

A spider and a mantis are both arthropod ambush predators and that is roughly where the similarity stops. Take from it the general steer that complexity looks like it helps and the animal will not confirm it, and then set it aside, because the mantis-specific requirement below is not an enrichment question at all.

Height, and What Is at the Top

The whole guide, really. An tall nano terrarium suits most commonly kept species, and the measurement that matters is clear vertical drop below the ceiling.

The ceiling has to be grippable. Mesh, screen or a rough surface the mantis can hang from securely for hours. Smooth glass or plastic at the top is a hazard, and adding mesh or a piece of rough material to hang from is a two minute fix that prevents the most common cause of death in the species.

Our tank setup guide covers dimensions by species, and our moulting guide covers what a pre-moult mantis looks like so you can stop feeding in time.

Structure to Perch and Ambush From

Beyond the ceiling, what a mantis wants is places to sit and wait. Thin branches, twigs and artificial foliage at varied heights and angles give perches and cover.

Keep the centre of the upper enclosure clear. Structure that fills the space directly under the ceiling is structure the mantis can hit on the way down during a moult.

Live Prey, Which Is the Behaviour

Visual ambush hunters that respond to movement. Most will ignore a dead insect entirely, and the hunt is the great majority of what a mantis does.

Release live prey rather than presenting it. Flying prey gets the strongest response and is the closest this animal comes to a real hunt. Fine forceps are useful for offering an item directly to a reluctant animal or a fresh moult. Prey sizing matters here more than in most species, since an item that is too large is genuinely dangerous to a mantis, and our ootheca guide covers what changes once you are raising nymphs.

Remove uneaten live prey before a moult. Crickets chew on soft mantids and it is a common and avoidable death.

Humidity, Species-Appropriate

Moulting fails in dry conditions as reliably as it fails in a short enclosure. A fine mist spray bottle used to raise humidity, with the enclosure drying between mistings and real ventilation, is the standard approach.

Species vary a lot. A desert mantis and a rainforest species want different numbers, and both want ventilation. Our health issues guide covers what goes wrong at both extremes.

Alone

Cannibalistic at any size difference and frequently at none. Solo housing is the only sensible default, and the exceptions are deliberate supervised breeding attempts with the expectation that things may go badly.

Accept the Lifespan

Most commonly kept mantids live under a year as adults. That shapes what enrichment means here: getting each moult right matters more than long-term environmental variety, because there is not much long term.

Priority Order

1. Clear vertical space of at least three times body length
2. A grippable ceiling the animal can hang from for hours
3. Species-appropriate humidity with real ventilation
4. Live prey released, correctly sized
5. Perches and cover at varied heights, clear of the moulting drop
6. Prey removed before every moult
7. Solo housing

What Not to Do

Do not keep a mantis in a short enclosure, which is the mistake that kills them. Do not leave a smooth ceiling with nothing to grip. Do not fill the space beneath the ceiling with structure. Do not leave live prey in with a pre-moult animal. Do not feed oversized prey. Do not house two together. And see our handling guide before handling one near a moult, when the animal is at its most fragile.

For the rest of their care, see our Praying Mantis cost guide, health issues guide, and tank setup guide, or browse the rest of our Invertebrates care guide category.

Sources & Further Reading