A fast-moving, fast-breeding tropical isopod with a soft powder-blue (or powder-orange) bloom, prized as a beginner clean-up crew and starter colony. Extremely prolific and forgiving, making it ideal for vivarium bioactive setups.
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Cosmopolitan; originally Mediterranean/Holarctic, now found worldwide
Origin
Worldwide
Climate
⛅ Subtropical
Family
Porcellionidae
Genus
Porcellionides
Part of the Isopods
Terrestrial isopods (woodlice, pillbugs, sowbugs) are land crustaceans kept as bioactive clean-up crews and colorful display colonies. They are low-cost, low-maintenance detritivores ideal for beginners.
From the minimum an animal needs to be kept humanely, up to the ideal setup. Bigger is almost always better — minimums are floors, not targets.
Photo coming soon
Minimum
Bioactive tub
6 × 9 × 6 in bin, coco + leaf litter
Porcellionides pruinosus 'powder blue' is a fast-breeding starter and cleanup-crew species. Coco-fibre + leaf litter, cork bark, humidity gradient, calcium. Tolerant of a wide range of conditions.
Photo coming soon
Recommended
Larger bioactive tub
12 × 12 × 6 in bin, leaf litter
A larger bin with deep leaf litter, multiple hides, springtails, and calcium. Powder blues are excellent cleanup crew for tropical vivaria.
Photo coming soon
Ideal
Bioactive vivarium
10–20 gal bioactive vivarium
A bioactive vivarium where they act as part of a balanced cleanup crew alongside springtails. Generous footprint and leaf-litter depth support large populations.
Life & growth stages
How this animal changes through its life — each stage often has its own care, diet and space needs.
Photo coming soon
Egg
These invertebrates lay eggs — often in a guarded clutch, a silk sac (spiders), or a brood (carried by female isopods). The eggs are small and soft and develop without a true larval or pupal transformation.
Photo coming soon
Juvenile
Juveniles hatch as miniature versions of the adult and grow by molting their exoskeleton (or, in snails, by enlarging the shell). They gain size, segments, or leg pairs and gradually take on adult coloration with each molt.
Adult
Adults reach full size and reproductive maturity with the species' mature form and coloration. Many arachnids and myriapods continue to molt as adults, and sexes can differ in size or in specialized appendages.
Color & pattern variants
Natural variants occur in the wild; selectively bred (man-made) variants were developed in captivity.
Natural
representative
Powder Blue
The standard form, with a fine blue-grey waxy bloom over the body.
representative
Powder Orange
A naturally occurring orange-toned color form of the same species, kept and cared for identically.
Selectively bred (man-made)
representative
White / Albino
A selectively maintained pale/white line lacking normal pigment.
Habitat & enclosure
A 6 qt (5.7 L) gasket-sealed plastic tub or small glass enclosure houses a starter colony; scale up as the population explodes. Keep roughly half the substrate moist and half drier to create a gradient. Target 70-80 F (21-27 C) and 60-75% humidity. Cross-ventilation holes on opposing sides reduce mold and stuffiness. They thrive at room temperature and breed year-round indoors.
Substrate
Use 1-2 in (2.5-5 cm) of a moisture-retentive mix such as coco coir or ABG blended with leaf litter and a handful of decaying hardwood. Top heavily with leaf litter and add cork bark and sphagnum moss for cover and humidity pockets. A bit of crushed limestone or aragonite in the substrate supports molting.
Equipment & setup
No heating or lighting required at normal room temperatures. Needs a ventilated but humidity-retaining container, a spray bottle for spot-misting the moist side, and leaf litter and cork bark for cover. Springtails are a useful add-on as a mold cleanup partner.
Diet
Detritivore. Offer leaf litter (oak, magnolia, sea grape), rotting white wood, and decaying plant matter as the dietary base. Supplement with a calcium source (cuttlebone, crushed eggshell, limestone) and regular protein (fish flakes, freeze-dried shrimp, dried insects) to fuel rapid breeding. Add vegetables such as carrot, zucchini, and sweet potato. Remove uneaten wet food before it molds.
Behavior & temperament
Active, skittish, and non-defensive. They scatter quickly when disturbed and are among the faster isopods, scurrying rather than rolling (they do not conglobate). Harmless to handle but rarely held due to speed and small size. Strictly a display and clean-up species, not a hands-on pet. Most active at night and in low light.
Health
Hardy with few issues. The main risks are dehydration (let the enclosure dry out fully and the colony crashes) and excessive mold or mite blooms from overfeeding wet protein. A healthy colony shows constant breeding and visible mancae (juveniles). Springtails make good co-inhabitants to control mold. Avoid pesticide-contaminated leaf litter or substrate.
Tips, DIY & hacks
Keep one side moist and one dry so the colony can self-regulate. Feed protein sparingly to avoid grain-mite outbreaks. This species multiplies extremely fast, so start small and harvest excess for cleanup crews or feeders. The orange ("powder orange") form is the same species and is cared for identically.
