Back to atlas
Terrestrial invert.TerrestrialEasy

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

Species challenges
Water Temperature

15 °C - 26 °C

pH Value

n/a

Water type

Terrestrial

Humidity

60 % - 80 %

Substrate depth

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.

Last updated: 06/13/2026