Giant Canyon Isopods (Porcellio dilatatus) Australian Isopod

The Giant Canyon Isopod is a large terrestrial isopod commonly found in Australia, though it originally hails from the Mediterranean region. Reaching up to 2 cm in length, it has a broad, rugged gray body and is known for its hardiness and fast movement.

These isopods thrive in moist, sheltered environments, often hiding under rocks, bark, or leaf litter. They feed on decaying plant matter, helping recycle nutrients into the soil. In captivity, they’re popular in bioactive terrariums for their durability and cleanup abilities.

Tough, adaptable, and easy to care for, Porcellio dilatatus is one of the best isopods for beginners and for maintaining healthy terrarium ecosystems.