Porcellio expansus

Porcellio expansus “Prades”  Giant Spanish Species

Upgrade your collection with Porcellio expansus “Prades”, a striking and rare giant isopod from the Prades Mountains of Catalonia, Spain. Known for their large size, flattened body, and bold orange-rust coloration, these isopods bring a unique Mediterranean aesthetic to any setup.

Perfect for experienced keepers, this species offers a rewarding challenge and a truly standout display.

🌟 Why Choose P. expansus “Prades”?

• Rare Spanish locality species
• Impressive large size (up to 22 mm)
• Distinctive flat body & vibrant orange tones
• Active and fast-moving behaviour
• Ideal for arid / semi-dry bioactive setups

📏 Key Details

• Scientific Name: Porcellio expansus “Prades”
• Adult Size: Up to 22 mm
• Origin: Catalonia, Spain
• Difficulty: Medium
• Rarity: Rare
• Breeding: Slow but stable

🌡️ Care Requirements

Unlike tropical isopods, this species thrives in drier, well-ventilated conditions:

• Temperature: 21–29°C (higher range preferred)
• Humidity: 30–50%
• Ventilation: High (critical for survival)
• Moisture: Small damp corner only (~20% of enclosure)
• Lighting: Low to moderate, avoid direct sunlight

➡️ Over-humidity is the #1 cause of failure with this species

🏜️ Habitat Setup

Replicate their natural Mediterranean environment:

• Substrate mix: Sandy soil, decomposed hardwood, calcium (limestone/gypsum)
• Decor: Cork bark, slate, and rocks for crevices
• Leaf litter: Minimal compared to tropical species
• Depth: 7–10 cm for burrowing

✔️ Prioritise dry conditions + airflow over humidity

🍽️ Diet & Feeding

These isopods prefer a low-moisture, nutrient-rich diet:

Staple foods:

• Lichen
• Dried leaf litter
• Decaying hardwood

Protein & supplements:

• Dried fish food
• Bee pollen
• Calcium sources

💡 Feed lightly once per week—avoid overfeeding or excess fresh foods

🐣 Breeding & Colony Growth

• Slow breeders – patience required
• First offspring typically 3–6 months
• Smaller broods (15–25 young) but high survival rates
• Warm temperatures improve breeding success

Perfect for hobbyists who enjoy long-term colony building

⚠️ Important Notes

• Sensitive during shipping and acclimation
• Avoid increasing humidity if losses occur
• Requires stable, dry conditions and strong ventilation
• Not recommended for beginners

🏆 Perfect For

✔️ Intermediate to advanced keepers
✔️ Collectors of rare European isopods
✔️ Arid or Mediterranean-style bioactive setups
✔️ Hobbyists seeking a larger, more active species

Order Porcellio expansus “Prades” Today

If you're looking for a rare, large, and visually striking isopod, Porcellio expansus “Prades” is an exceptional choice. With proper care, they become a stable, fascinating colony that stands out from typical species.

👉 Add this unique Mediterranean giant to your collection today!