Jumping Spider Enclosure — Ventilated Acrylic Habitat by ArachNest

Start with what you're actually housing. A single adult jumping spider of a common US species like Phidippus audax (roughly 10-13mm body length) is comfortable in the Small 10x10x10cm cube — it's enough floor space to hunt and jump without being so large the spider struggles to find prey or feels exposed. If you're keeping a more arboreal species, or one on the larger end like Phidippus regius (up to ~18mm), the Medium 12x12x20cm gives extra vertical room for web-line anchor points, which many jumping spiders use during molts and for resting.

The Large 25x15x15cm is less about the spider being bigger and more about what you want to spread out across the floor — separate feeding and resting zones, multiple anchor points, or more elaborate décor. It trades some height versus the Medium for a wider footprint, so it suits ground-active setups more than a tall climbing rig.

One thing to avoid: sizing up "just in case" beyond what your species needs. An oversized enclosure for a small, visual-hunting spider can make feeding harder (the spider may not notice prey introduced far from its current position) and can make the animal harder to observe, which somewhat defeats the point of a clear acrylic enclosure in the first place. This guidance reflects common practice among hobbyist keepers, not a veterinary or biological standard — if you're keeping a less common species, cross-check sizing with an experienced keeper community before you buy.

Setup itself is straightforward: most keepers add a shallow layer of substrate (coco fiber or sphagnum moss are common choices), one or two anchor points such as cork bark or an artificial plant, and mist lightly every 1-2 days depending on ambient humidity. Assembly of the enclosure itself takes most buyers a few minutes — panels click together without tools, and the protective film should be peeled from all panels before first use for full clarity.

A few practical notes from buyer feedback worth planning around: order ahead of a molt or rehoming date rather than as a same-week purchase, since fulfillment typically runs 7-12 business days. Peel the protective film from every panel, not just the front, before adding substrate — film left in corners is easy to miss and dulls the clarity that makes acrylic worth choosing over mesh in the first place. And if you're moving a spider that's already established a silk anchor line in its old housing, keeping a small piece of that substrate or décor when you transfer it can shorten the settling-in period in the new enclosure — a common hobbyist practice, not a guaranteed outcome.

Dimensions and pricing reflect the 3 sizes ArachNest curates from a broader 9-size acrylic enclosure line originally sourced for general reptile and invertebrate keeping. Species-fit guidance above is based on common hobbyist sizing practice, not manufacturer or veterinary specification.

For a single adult jumping spider (most Phidippus or Salticidae species run 10-18mm), the Small 10x10x10cm cube is plenty of floor space. If you keep an arboreal jumper that likes to climb, the Medium 12x12x20cm gives more vertical room for web-line anchoring and molting. The Large 25x15x15cm trades height for floor space — best for keepers who want room for more elaborate décor, multiple feeding stations, or a species that spends more time on the ground.

Yes. Cast acrylic is inert, non-toxic, and widely used across the invertebrate-keeping hobby for exactly this reason — it will not off-gas or react with substrate moisture the way some untested plastics can. It also holds humidity better than mesh while staying light enough to move safely.

Yes, airflow prevents stagnant, overly humid air that can encourage mold on substrate or decor. ArachNest enclosures ship with laser-cut ventilation patterns on at least two panels — enough exchange for a healthy micro-climate without drying the enclosure out between mistings.

Most keepers start with a shallow substrate layer (coco fiber or sphagnum moss), add one or two anchor points for web lines (cork bark, artificial plant, twig), and mist lightly every 1-2 days. This is common hobbyist practice, not a veterinary protocol — always cross-check with an experienced keeper community for your specific species.

The AliExpress-sourced enclosure line this product comes from is marketed broadly for reptiles and invertebrates, and buyer reviews mention everything from tarantulas to small lizards. ArachNest specifically curates the 3 smallest sizes because they suit jumping spiders best — for tarantulas, most keepers will want a larger footprint than what we stock here.

A flush-fit magnetic strip holds the lid closed under normal handling while still lifting off in one motion for feeding or misting. Reviewers consistently call out the magnetic closure as a highlight versus screw-top or slide-lid designs that can pinch webbing or require two hands.

Cast acrylic is more scratch-resistant than thin polystyrene but is not glass — avoid abrasive cleaning pads. A soft cloth with water or diluted mild soap keeps panels clear. We have not tracked long-term UV yellowing data ourselves, so keep enclosures out of direct, prolonged sunlight as a precaution.

Some buyers note a faint protective-film smell on first unboxing that clears within a day once the film is peeled and the enclosure airs out. This is standard for shipped acrylic products and is not reported as persisting.

ArachNest offers a 30-day money-back guarantee. One verified 1-star review flagged a batch with jagged edge cuts on the connecting sides — see our reviews page for that full account. If your enclosure arrives with a similar fit issue, contact us within 30 days for a resolution.

Orders typically ship within 7-12 business days. Because enclosures are sourced and fulfilled internationally, we recommend ordering ahead of any planned molt or rehoming date rather than as a same-week emergency purchase.