Encyclopaedia
Giant Canyon Isopod
Porcellio dilatatus
A large, robust terrestrial isopod popular as a cleanup crew in bioactive terrariums due to its adaptability, high breeding rate, and debris-eating habits.
- Family
- Porcellionidae
- Origin
- Europe, and introduced globally including North America.
- Origin
- Cosmopolitan or introducedExtra-Amazon South AmericaCentral America and CaribbeanNorth AmericaEurope, Mediterranean, and West Asia
- Tank use
- Used in 0 tanks
Share
15 °C - 26 °C
n/a
Terrestrial
60 % - 80 %
5 cm
Species description
Geographical Origin and Habitat: Native to western Europe, introduced globally. It thrives in damp leaf litter, under logs, rocks, and organic compost piles.
Taxonomy and Genetics: Member of the Porcellionidae family, genus Porcellio. Known for its wide, flattened body shape compared to other common isopods.
Behavior and Habits: Highly social and gregarious. Spends the day hidden in damp crevices, emerging at night to feed on decaying leaves and rotting wood. Cannot roll into a ball (convolute).
Morphology: Adults reach 1.5 to 2.0 cm in length. Uniform brownish-gray color with a slightly textured shell. Males possess longer uropods than females.
Care, breeding and tankmates
Terrarium Setup: Plastic or glass tub of at least 30x20x20 cm. Provide a 5 cm deep substrate of coco-coir, peat, and organic compost covered in dry oak leaves.
Lighting and Heating: Keep at room temperatures between 18°C and 24°C. No specific lighting is required; keep in a shaded or dark location.
Humidity and Hydration: Maintain humidity levels of 60-80%. Create a moisture gradient by wetting only one side of the tub (using sphagnum moss) and leaving the rest dry.
Feeding and Supplementation: Detritivorous. Feeds primarily on leaf litter and rotting wood. Supplement with proteins (fish flakes, dried shrimp) and fresh vegetables weekly.
Compatibility: Peaceful cleanup crew. Coexists well with medium to large reptiles and amphibians. Do not house with small, voracious predators.
Health and Common Diseases: Must have access to calcium (cuttlebone) for successful molting. Extremely sensitive to dry air; a complete dry-out is fatal.
Terrestrial invertebrate profile
- Diet
- Detritivoro
- Humidity
- 60 % - 80 %
- Water Temperature
- 22 °C
- Sociality
- Sociale
- Venom level
- Nessuno
- Substrate depth
- 5 cm
Image gallery
Licensed images linked to the species or, when marked, to the closest representative taxon.
Related species
Other recommended species with similar care requirements and water parameters.





