Invertebrates

Indian Ornamental care guide

Poecilotheria regalis

Height first. Arboreals build tube webs against vertical bark, so give them a tall enclosure with a slab to anchor to and only a couple of inches of substrate.

Arboreal — vertical height first

Indian Ornamental enclosure size

Arboreal — vertical height first. An adult indian ornamental should live in at least 8" L × 8" W × 18" H; we build toward 11" L × 11" W × 21" H (0.9 × 0.9 × 1.8 ft, roughly 0.8 sq ft of floor and about a 11-gallon glass equivalent).

Vertical cork slab from floor to ceiling; the web tube will be built along it.

Spiderling / sling
2" L × 2" W × 6" H recommended · min 2" L × 2" W × 4" H
Juvenile
5" L × 5" W × 10" H recommended · min 4" L × 4" W × 8" H
Adult
11" L × 11" W × 21" H recommended · min 8" L × 8" W × 18" H

Temperature and heating

Heat the room, not the enclosure. If the room drops below 68 °F use a thermostatted space heater or a heat mat on the outside of a side wall (never under the substrate) — heat mats under a burrow cook the animal.

Basking / warm surface
None — no basking site, no heat lamp
Warm side (ambient)
72–80 °F ambient room temperature
Cool side (ambient)
70–75 °F ambient room temperature
Night
Room temperature; a 5–8 °F night drop is fine

Lighting and UVB

UVB: None — invertebrates need no UVB and bright light stresses them. Run lights on a Ambient room light on a normal day/night cycle; keep the enclosure out of direct sun photoperiod, on a timer, and replace UVB bulbs on the manufacturer's schedule even while they still emit visible light.

Humidity

Target 60–70% ambient. Dampen one corner of the substrate every week or two and keep a water dish full — never soak the whole enclosure.

Substrate and depth

Coco fibre with leaf litter on top. Depth: 1–2 in — just enough to hold humidity.

  • Ventilation: Heavy cross-ventilation — arboreals are the least tolerant of stale, wet air of anything in the hobby.

Enclosure tips and furnishing

  • Full-height cork bark slab or tube
  • Hanging fake foliage for web anchors
  • Shallow water dish at floor level

Build list

  • Tall front-opening arboreal enclosure — Top-opening tanks put your hand where the animal's retreat is — arboreals bolt upward.
  • Cork bark slab / tube — The web tube is built against bark; without it the spider webs a mess in the corner.
  • Digital thermometer / hygrometer — Inverts are kept at room temperature — you need to know what the room actually does, not guess.
  • Long feeding tongs and a catch cup — Every interaction — feeding, water top-ups, rehousing — should happen without your hand near the animal.

Indian Ornamental FAQ

How big should an adult Indian Ornamental enclosure be?

At least 8" L × 8" W × 18" H, and we recommend building to 11" L × 11" W × 21" H — about 0.9 × 0.9 × 1.8 ft, or a 11-gallon glass equivalent. Arboreal — vertical height first.

What temperatures does a Indian Ornamental need?

Basking or warm surface None — no basking site, no heat lamp, warm side 72–80 °F ambient room temperature, cool side 70–75 °F ambient room temperature, night Room temperature; a 5–8 °F night drop is fine. Heat the room, not the enclosure. If the room drops below 68 °F use a thermostatted space heater or a heat mat on the outside of a side wall (never under the substrate) — heat mats under a burrow cook the animal.

Does a Indian Ornamental need UVB?

None — invertebrates need no UVB and bright light stresses them. Photoperiod: Ambient room light on a normal day/night cycle; keep the enclosure out of direct sun.

What humidity does a Indian Ornamental need?

60–70% ambient. Dampen one corner of the substrate every week or two and keep a water dish full — never soak the whole enclosure.

What substrate is best for a Indian Ornamental?

Coco fibre with leaf litter on top, at a depth of 1–2 in — just enough to hold humidity.

How big does a Indian Ornamental enclosure need to be for a hatchling?

Spiderling / sling: 2" L × 2" W × 6" H recommended, minimum 2" L × 2" W × 4" H. Scale up to the adult footprint as the animal grows.

Is there anything to be careful about when keeping a Indian Ornamental?

Old World species: no urticating setae, fast, defensive and medically significant venom. Bite-safe protocol only — catch cups, long tongs, never free-handle.

How much ventilation does a Indian Ornamental enclosure need?

Heavy cross-ventilation — arboreals are the least tolerant of stale, wet air of anything in the hobby.

Sources

Put this guide to work

Apply these targets to your own indian ornamental record, then log feedings, sheds and weights against them.