🕷️ How to Set Up a Jumping Spider Enclosure

A jumping spider needs one of the smallest, cheapest habitats in the pet world — but it has one famous design rule that trips up every new keeper. Here's the right way to build a tiny home for a tiny hunter.

Small, tall, and front-opening

Jumpers are arboreal explorers that live vertically, so choose a small, tall enclosure — around 4x4x8 inches is plenty for an adult. Now the famous rule: jumping spiders build their silk sleep-sack at the very top of their home. A top-opening lid tears through their bedroom every time you open it, so buy or build a front- or side-opening enclosure. Your spider (and your relationship with it) will thank you.

Ventilation and warmth

Good cross-ventilation — vents on more than one side — keeps air fresh and prevents dangerous stuffy humidity. Normal room temperature (roughly 70–80°F) is ideal, with no heat lamp needed for common species. Place the enclosure in a bright room where the spider can watch the world, but never in direct sunlight, which can overheat a tiny box in minutes.

Decorating the hunting ground

Furnish with things to climb and perch on: fake or live plants, twigs, and cork bark, with open space left for jumps. A thin layer of paper towel or coco fiber on the floor makes cleanup easy. Leave the top third fairly open — that's prime real estate for the sleep-sack, and you'll get to watch it being built.

Water and food

No water dish (a tiny spider can drown) — instead, mist lightly most days so droplets bead on the walls and plants for drinking. Feed a small live insect every day or two: flightless fruit flies for young spiders, then small crickets, house flies, or a mealworm for adults. Prey should be about the spider's body size or smaller; remove anything uneaten. Soft feeding tongs make serving dinner easy.

Molting: do not disturb

Every so often your spider will seal itself into its silk sack and stay hidden for days — up to a couple of weeks. That's a molt, not a problem. Don't open the sack, don't offer food, don't "check on it" with a poke. A freshly molted jumper is soft and fragile; it will come out, bigger and often brighter, when it's ready.

Quick setup checklist

• Small, tall enclosure (about 4x4x8"), front- or side-opening
• Cross-ventilation; room temperature; no direct sun
• Plants, twigs, and cork to climb, with the top third left open
• Light misting most days for drinking droplets — no water dish
• One small live insect every 1–2 days; remove leftovers
• Total peace during molts

Curious how a jumper compares to a tarantula? Read our jumping spider vs. tarantula comparison, browse the tarantula guide, or take the pet quiz.

🛒 Recommended supplies

Hand-picked gear for this guide. Affiliate links — we may earn a commission. The $/$$/$$$ badges are a rough budget guide, not live prices.

🧽 Cleaning & maintenance

Keep it simple and gentle. Remove uneaten food, dead feeders, and obvious waste every few days so mold and mites cannot take hold, and pull out any moldy substrate right away. Wipe the walls and rinse the water dish as needed, and do a full substrate change every few months (more often for humid setups). Skip chemical cleaners inside the enclosure — invertebrates are very sensitive to residues — and use just hot water, with a little vinegar for the glass. For humid species, good airflow and prompt waste removal are your best defense against mold.

Cleaning supplies for this habitat. Affiliate links — we may earn a commission. The $/$$/$$$ badges are a rough budget guide, not live prices.

❓ Common questions