Field identity
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Porcellio laevis "Milkback" Isopods
$12.99 -
$179.99
A stripe that stands out. Porcellio laevis Milkback isopods carry a pale, milky stripe running down the back of an otherwise dark body, a distinctive marker within the hardy laevis species. Originally from Europe and North Africa and now established worldwide, laevis remains one of the easiest large isopods to keep.
They do well with medium moisture and plenty of calcium available, comfortable across 65 to 80F and 55 to 75% humidity. Adults reach 15 to 20mm, and the milkback stripe makes individuals easy to pick out even in a large colony.
- Distinctive pale Milkback stripe
- Large, hardy laevis body type
- Comfortable across a wide temperature and humidity range
- Easy to spot and beginner-friendly
Covered by our Live Arrival Guarantee.
Care Snapshot
| Climate | Temperate |
| Temperature | 65 to 80 F |
| Humidity | 55 to 75% |
| Adult size | 15 to 20 mm |
| Origin | Europe/North Africa; introduced worldwide |
| Care level | beginner |
The keeper's royal chronicles
Milkback Isopod Care Quest
Prepare a refuge for Porcellio laevis. Follow the care sheet for habitat, moisture, feeding and everyday colony care.
Read the care sheet →Know your colony
Care and Keeper Confidence
Plan a welcoming habitat before your colony arrives. Start with the care guide for the species you have chosen.
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Direct answers
Before this colony arrives
Prepare the refuge, gather provisions, and plan your first days as colony keeper.
What should I prepare?
Stabilize the enclosure before ordering. Use the temperature and moisture fields above when they are shown, and provide species-appropriate substrate, leaf litter, hides, calcium, and ventilation.
How should I compare this listing?
Keepers choosing a colony that suits their enclosure, experience, and care routine. Match moisture, ventilation, and space to your chosen species. Check its care guide before setting up.
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Where can I ask a species question?
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