Reptoria

Giant canyon isopod (Porcellio dilatatus)

Giant canyon isopod (Porcellio dilatatus), typical appearance of the species

Invertebrates · Difficulty: Beginner

Key facts and care guidance for Giant canyon isopod (Porcellio dilatatus) (origin: Europe; introduced worldwide). Adult size around 1,5–2 cm. Life expectancy 2–3 years. The values below are carefully researched guidance.

Short answers

Giant canyon isopod: How big does the enclosure need to be?

20×15×15 cm.

Giant canyon isopod: What temperature does it need?

Daytime 20–26 °C, basking spot No basking spot, at night 16–20 °C.

Giant canyon isopod: Does it need UVB lighting?

UVB: Not required.

Giant canyon isopod: How long do they live?

Life expectancy: 2–3 years.

Giant canyon isopod: Is it suitable for beginners?

Yes – it is considered suitable for beginners (difficulty: Beginner).

Climate

Daytime temperature
20–26 °C
Night temperature
16–20 °C
Basking spot
No basking spot
Humidity
60–75 %
UVB
Not required

Enclosure

Minimum size
20×15×15 cm
Substrate
A soil and leaf-litter mix, a calcium source, pieces of bark

Feeding

Food
Leaf litter, vegetables, dry food, cuttlebone
Feeding interval
2×/week

Key facts

Adult size
1,5–2 cm
Life expectancy
2–3 years
Origin
Europe; introduced worldwide
Protection status
Not listed under CITES
Brumation
None
Cohabitation
Colony. Isopods are gregarious and are kept as a group – 10 to 15 animals to start. Only this one species per tub: faster or slower breeding species crowd each other out, and larger Porcellio nibble freshly moulted smaller isopods when protein is short.

Notes

A very productive, robust species – often used as a clean-up crew in terrariums. It breeds fast and takes a broad range of humidity.

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Related species

All species in the care wiki →

What you need to start

To keep Giant canyon isopod (Porcellio dilatatus) you typically need: a suitable enclosure (20×15×15 cm), substrate (A soil and leaf-litter mix, a calcium source, pieces of bark), a heat source with a thermostat, thermometer and hygrometer, a water dish and hides. You will find equipment in the Reptoria marketplace.

The complete, interactive care database is in the Reptoria app.

Last updated: 9 October 2026 · Editor: Reptoria editorial team · Sources include: https://en.wikipedia.org/wiki/Porcellio_dilatatus, https://en.wikipedia.org/wiki/Woodlouse, https://postpods.co.uk/blogs/isopods-useful-articles/giant-canyon-isopods, https://postpods.co.uk/blogs/isopods-useful-articles/keeping-different-isopods-together, https://terrariumtribe.com/giant-canyon-isopods/

All values are non-binding guidance and do not replace expert advice. Research thoroughly from several sources before acquiring and keeping an animal, and observe the applicable law (species and animal protection in particular).