Crystal Pineapple Isopods (Crystarmadillidium muricatum)

Crystal Pineapple Isopods (Cristarmadillidium muricatum) are a truly fascinating, highly specialized, and beautifully textured spiky isopod species that is rapidly capturing the hearts of collectors worldwide. Renowned for their unique, miniature appearance, they look like tiny walking pineapples rather than your typical smooth-shelled common varieties. Their warm yellow, amber, peach, and soft orange bodies are completely covered in intricate, blunt tubercles and short spines that provide an amazing tactile and visual quality. Unlike many larger Porcellio species, Cristarmadillidium muricatum are capable of tight, perfect conglobation, rolling up into a neat little spiked ball when they feel startled or threatened. Because they are much slower growers with relatively small brood sizes, they are highly sought after as an intermediate collector's display species rather than a rapid, foundational cleanup crew. They add an incredible level of diversity and charm to any dedicated invertebrate collection.

This species is absolutely ideal for advanced beginners or intermediate hobbyists who genuinely appreciate miniature morphological detail and the joy of observing subtle, nocturnal behavior. They are best kept as a dedicated, treasured display culture in a specialized terrarium or breeding bin rather than being used as a primary bioactive cleanup crew, as they have smaller appetites and can be sensitive to excessively soiled or poorly ventilated environments. They are the perfect match for keepers who enjoy meticulously detailing their setups with premium cork bark, limestone chunks, and deep leaf litter, spending evening hours with a flashlight observing these tiny spiked gems explore their microhabitats. If you are looking to graduate from basic starter species to something uniquely striking, slow-paced, and incredibly rewarding to successfully culture, the Crystal Pineapple isopod is the perfect choice for your next project.

SCIENTIFIC NAME: Cristarmadillidium muricatum

ORIGIN: Spain and the wider Mediterranean region, where they are frequently found tucked away in limestone-rich, rocky microclimates and arid scrublands.

DIFFICULTY: Intermediate

TEMPERATURE RANGE: 18-26°C. They thrive comfortably at standard room temperatures, but maintaining them around 21-23°C is highly recommended if you want to achieve the most consistent and optimal breeding results over time.

HUMIDITY & MOISTURE: 50-70% with a strict, well-defined moisture gradient. These isopods absolute require high ventilation to prevent stagnant air, meaning you must provide a distinct dry side in the enclosure alongside a localized, damp sphagnum moss refuge on the opposite end. Overly wet, muddy, or poorly ventilated conditions are a major risk factor and can quickly lead to molting failures or colony decline.

DIETARY NEEDS: Their primary diet must consist of rich, decaying forest materials including organic hardwood leaf litter and rotting wood, which they will graze on constantly. To ensure healthy growth and strong exoskeleton development, they must be supplemented heavily with a reliable, permanent calcium source like cuttlefish bone or natural limestone chunks, alongside light protein updates offered once or twice a week such as high-quality fish flakes, dried shrimp, or minnows.

ACTIVITY LEVELS: Shy, cryptic, and primarily nocturnal. They prefer to spend their daylight hours safely wedged into the tight crevices of cork bark or buried deep within the bottom layers of leaf litter, but they will naturally feel much more secure and display significantly higher activity levels when kept in larger, well-established grouped cultures.

REPRODUCTION RATE: Relatively slow to establish compared to mainstream species. Their brood sizes are naturally quite small, starting at around a mere half a dozen offspring for younger adults and maxing out at roughly a dozen mancae per clutch for fully matured females, meaning patience is key when watching the colony grow.

SIZES: You will receive a healthy mix of sizes ranging from small juveniles to well-established young adults, providing your new colony with an excellent demographic foundation to start reproducing. Please note that tiny newborn mancae are never intentionally shipped out due to their fragile nature, but because these isopods are live-bearers, females will occasionally give birth during the transit process.

PACKAGING: The isopods will be packed with the utmost care in small, ventilated plastic containers filled to the brim with clean, damp sphagnum moss to maintain perfect ambient moisture. These tubs are then securely nestled inside a sturdy cardboard shipping box and thoroughly padded with either packing peanuts, paper, or thick cardboard layers to insulate them against temperature swings and movement.

100% LIVE ARRIVAL: At TerraPods, we offer a 100% live arrival guarantee

20% OVERCOUNT: All isopod packages will come with a 20% overcount