Giant canyon isopod (Porcellio dilatatus)
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
- Dairy cow isopod (Porcellio laevis) – Beginner
- Bolivar's isopod (Porcellio bolivari) – Intermediate
- Giant Spanish isopod (Porcellio expansus) – Beginner to intermediate
- Yellow-bordered woodlouse (Porcellio flavomarginatus) – Beginner
- Porcellio haasi isopod (Porcellio haasi) – Beginner to intermediate
- Orange isopod (Porcellio ornatus) – Beginner to intermediate
- Porcellio succinctus isopod (Porcellio succinctus) – Intermediate
- Greek shield isopod (Porcellio werneri) – Beginner to intermediate
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).