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Porcellio Expansus "Prades" Isopods

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Porcellio expansus “Prades” Isopods

Porcellio expansus “Prades” is a large and impressive morph of the Spanish giant isopod Porcellio expansus. Originating from the Prades region of Spain, this locality form is admired for its robust body, strong antennae, and earthy colour tones that blend beautifully with natural enclosure materials.

As one of the larger Porcellio species, P. expansus are active and frequently visible exploring their enclosure. They thrive in well-ventilated setups with a clear moisture gradient, deep organic substrate, and plenty of bark hides. With stable conditions and regular feeding, they can establish impressive and active colonies.

Quick facts

  • Care level: Intermediate
  • Temperament: Active and bold
  • Best feature: Large size and strong antennae
  • Good for bioactive: Yes (excellent detritivores)

Habitat & setup

  • Ventilation: High (important for Porcellio species)
  • Humidity: Moderate with a defined moist area
  • Substrate: Organic mix with leaf litter and hardwood
  • Leaf litter: Always available (primary food source)
  • Hides: Cork bark slabs and dry bark pieces

Temperature

  • Ideal range: 20–26°C
  • Notes: Stable warmth supports growth and breeding

Feeding

Porcellio expansus benefit from a varied diet. Their staple foods should be leaf litter and decaying hardwood, with occasional protein supplements such as fish flakes, shrimp pellets, or specialised isopod diets to support growth.

  • Staples: Leaf litter, rotten wood
  • Supplements: Protein foods such as fish flakes or shrimp pellets
  • Calcium: Cuttlebone, limestone, or calcium powder

Care notes

  • Ventilation is essential: Avoid overly damp or stagnant setups.
  • Moisture gradient: Provide a damp zone and a larger dry area.
  • Large species: Requires slightly more space than smaller isopods.
  • Protein supports growth: Occasional supplementation helps colony health.

What you’ll receive

You’ll receive healthy Porcellio expansus “Prades” isopods from established captive-bred colonies. Sizes may vary.

Tip: Larger Porcellio species appreciate strong ventilation and plenty of bark hides to explore.

Need supplies to get started? Browse our isopod substrate, leaf litter, cork bark, and setup essentials to build the perfect habitat for your colony.


Ease of care
Preferred Temperature

Preferred Humidity
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Care Instructions

Porcellio expansus “Prades” prefer warm temperatures and strong ventilation with a clear moisture gradient.

Provide an organic substrate with leaf litter and hardwood.

Keep one side slightly moist while maintaining a larger dry area.

Feed primarily with leaf litter and rotten wood, supplemented with protein foods.

Provide a constant calcium source such as cuttlefish bone or limestone.

Porcellio Expansus "Prades" Isopods

£30.00 GBP