{"product_id":"penguin-isopods","title":"Penguin Isopods \/ Cubaris White Side (Cubaris sp.) for Sale","description":"\u003cp\u003ePenguin Isopods — also widely sold as Cubaris White Side — are one of the most accessible and affordable Cubaris species available in the UK hobby. The distinctive penguin-like colouration (dark grey-to-black body with bright white margins along each segment edge, plus white markings on the head and rear) genuinely resembles the seabird that gives them their nickname. Some sellers also list them as \"Pinguin\" or \"Orca\" — all referring to the same species with the same striking high-contrast appearance.\u003c\/p\u003e\n\u003cp\u003eWhat makes Penguin\/White Side particularly worth keeping is the combination: genuine Cubaris visual appeal at the most accessible pricing in the entire Cubaris range, paired with notably forgiving care that makes them the recommended starting point for keepers wanting their first Thai cave Cubaris experience. They're widely described by experienced keepers as \"one of the easiest Cubaris species for a beginner\" — meaningful praise given how demanding many Cubaris can be.\u003c\/p\u003e\n\u003cp\u003ePenguins also hold a notable place in Cubaris history. They were among the very first Cubaris species widely available in the UK and global hobby — predating the 2017 \u003ca href=\"\/products\/rubber-ducky\"\u003eRubber Ducky\u003c\/a\u003e explosion that transformed the entire Cubaris market. Their discovery helped open the door to the many Thai and Vietnamese Cubaris species now available to collectors.\u003c\/p\u003e\n\u003cp\u003eAvailable in groups of 10, 20, or 50. Captive-bred stock from established UK colonies. \u003cstrong\u003eCurrently on sale at 58% off (£12.50 for 10, reduced from £30) — exceptional value for a genuine Cubaris species.\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch2\u003eQuick Care Summary\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eScientific Name:\u003c\/strong\u003e \u003cem\u003eCubaris\u003c\/em\u003e sp. 'White Side' \/ 'Penguin'\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCommon Names:\u003c\/strong\u003e Penguin Isopod, White Side Isopod, Pinguin, Orca, Cubaris White Side\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFamily:\u003c\/strong\u003e Armadillidae\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOrigin:\u003c\/strong\u003e Southeast Asia — Thailand\/Cambodia limestone karst environments (sources vary; some list Vietnam)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdult Size:\u003c\/strong\u003e 8–15 mm (around 10 mm typical) — smaller than many popular Cubaris\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLifespan:\u003c\/strong\u003e 1–2 years typical\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDifficulty:\u003c\/strong\u003e Easy — among the most accessible Cubaris species\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature:\u003c\/strong\u003e 20–28°C (25°C optimal for breeding)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHumidity:\u003c\/strong\u003e 55–80% with moisture gradient (70\/30 wet-to-dry split)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVentilation:\u003c\/strong\u003e Medium — balance airflow with humidity retention\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConglobation:\u003c\/strong\u003e Yes — rolls into a tight ball when disturbed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBehaviour:\u003c\/strong\u003e Nocturnal, social, gregarious, active burrowers\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBreeding:\u003c\/strong\u003e Slow to establish then moderately prolific — typical Cubaris pattern\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWhat Makes Penguin \/ White Side Isopods Special\u003c\/h2\u003e\n\u003cp\u003eSeveral factors have made Penguin\/White Side one of the most enduringly popular accessible Cubaris in the UK hobby:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGenuinely striking penguin-like colouration.\u003c\/strong\u003e The dark grey-to-black body with white margins along each segment, plus white markings on the head, rear, and underside, creates immediate visual contrast. The penguin comparison isn't marketing stretch — the colour distribution genuinely resembles the seabird. Some sellers use \"Orca\" as an alternative trade name, which captures the same high-contrast black-and-white appeal.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOne of the most accessible Cubaris species.\u003c\/strong\u003e This is the central practical advantage. Where premium Cubaris like \u003ca href=\"\/products\/rubber-ducky\"\u003eRubber Ducky\u003c\/a\u003e or \u003ca href=\"\/products\/cappuccino-isopods\"\u003eCappuccino\u003c\/a\u003e can be notoriously sensitive and expensive, Penguin\/White Side offer genuine Cubaris visual appeal at the most accessible Cubaris pricing in your range. The current sale price (£12.50 for 10) makes them outright affordable rather than premium-tier.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNotably forgiving for a Cubaris.\u003c\/strong\u003e Experienced keepers consistently describe them as \"hardy\" and \"adaptable\" compared to other Cubaris species. They tolerate humidity fluctuations better than premium morphs, recover from minor husbandry mistakes more reliably, and don't require the precision care that ultra-demanding Cubaris demand. They're not bulletproof — they're still tropical Cubaris needing appropriate conditions — but they're meaningfully more forgiving than the demanding end of the genus.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHistorical significance.\u003c\/strong\u003e Penguin\/White Side were among the first Cubaris species widely available in the hobby — predating the 2017 Rubber Ducky boom that transformed the entire Cubaris market. Keeping them connects you to the foundation species that opened the door for everything that followed.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSocial, gregarious behaviour.\u003c\/strong\u003e Like other Cubaris, they thrive in colony settings rather than as isolated pairs. Larger starter colonies (20+ individuals) establish faster and breed more reliably than minimum starter groups. The social grooming and foraging behaviour adds interest to colony observation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eActive burrowers.\u003c\/strong\u003e They dig effectively and use deep substrate, locking in body moisture and creating natural colony structure. Deep substrate (15 cm \/ 6 inches) genuinely matters for this species, not just minimum coverage.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eConglobation.\u003c\/strong\u003e Like all Cubaris, they roll into tight defensive balls when disturbed — adding character to colony observation and complementing their striking colouration.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eStepping stone to more demanding Cubaris.\u003c\/strong\u003e Master Penguin\/White Side, build Cubaris husbandry experience, and you're positioned to attempt more demanding species like Rubber Duckies, Lemon Blues, or rare morphs. Many serious Cubaris keepers started with this species before progressing.\u003c\/p\u003e\n\u003ch2\u003eHow Penguin \/ White Side Compare to Other Cubaris\u003c\/h2\u003e\n\u003cp\u003eIf you're choosing between Cubaris species, here's how Penguin\/White Side fit in:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003evs \u003ca href=\"\/products\/c-murina\"\u003eCubaris murina (Little Sea)\u003c\/a\u003e:\u003c\/strong\u003e Murina are the absolute entry-level wild-type Cubaris — even cheaper than Penguin, even more prolific, but visually less striking. Penguins offer better visual appeal with similarly accessible care. Either makes a sensible first Cubaris.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003evs \u003ca href=\"\/products\/panda-king\"\u003ePanda King\u003c\/a\u003e:\u003c\/strong\u003e Panda Kings have bolder, more contrasting black-and-white panda patterning and are slightly larger. Penguins have more subtle skirted white margins. Similar care difficulty — choose based on visual preference and budget (Penguins are typically cheaper).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003evs \u003ca href=\"\/products\/pak-chong\"\u003ePak Chong\u003c\/a\u003e:\u003c\/strong\u003e Pak Chong are larger tricoloured Cubaris (blue-grey\/white\/orange) at higher prices. Penguins are smaller with simpler black-and-white colouration at accessible pricing. Different tiers — Penguins for entry-level, Pak Chong for stepping up.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003evs \u003ca href=\"\/products\/red-edge-isopods\"\u003eRed Edge\u003c\/a\u003e:\u003c\/strong\u003e Red Edge have dramatic red skirting on dark bodies and are also accessible Cubaris. Penguins have white skirting instead of red. Both are recommended gateway Cubaris with similar care — choose based on which colour scheme appeals more.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003evs \u003ca href=\"\/products\/rubber-ducky\"\u003eRubber Ducky\u003c\/a\u003e:\u003c\/strong\u003e Rubber Duckies are the iconic premium Cubaris — much more expensive, harder to keep, slower-breeding. Penguins offer entry-level Cubaris experience at a fraction of the price. Many keepers use Penguins to develop Cubaris experience before attempting Rubber Duckies.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBrowse the full \u003ca href=\"\/collections\/cubaris-isopods\"\u003eCubaris collection\u003c\/a\u003e to compare all options.\u003c\/p\u003e\n\u003ch2\u003eSetting Up the Enclosure\u003c\/h2\u003e\n\u003cp\u003eA 6–8 litre plastic container or small glass terrarium works well for a starter colony of 10–20. Plastic tubs with clip-lock lids hold humidity reliably and are easy to maintain. Glass terrariums offer better display value if you want to showcase the penguin colouration.\u003c\/p\u003e\n\u003cp\u003eFor ventilation, drill multiple small holes on opposite sides of the container to create cross-ventilation. Medium ventilation works well — enough airflow to prevent stagnation but not so much that humidity drops below their preferred range. Cover holes with fine mesh to prevent escapes.\u003c\/p\u003e\n\u003cp\u003eKeep the enclosure in a dim, quiet area — Penguin\/White Side prefer low-light conditions reflecting their cave-dwelling origins. Direct sunlight or bright artificial lighting causes stress.\u003c\/p\u003e\n\u003cp\u003eBrowse our \u003ca href=\"\/collections\/accessories\"\u003eaccessories collection\u003c\/a\u003e for appropriate enclosures, vents, and other essentials.\u003c\/p\u003e\n\u003ch2\u003eSubstrate — Depth Matters for This Species\u003c\/h2\u003e\n\u003cp\u003ePenguin\/White Side are active burrowers and benefit from notably deep substrate — significantly deeper than typical Armadillidium or Porcellio setups.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended substrate depth: 15 cm (6 inches) minimum.\u003c\/strong\u003e This isn't just a guideline — they actively dig down to lock in body moisture and feel secure. Shallow substrate forces them to the surface where they're more stressed and less likely to breed successfully.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSubstrate composition:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOrganic topsoil base (pesticide-free)\u003c\/li\u003e\n\u003cli\u003eSphagnum peat moss for moisture retention\u003c\/li\u003e\n\u003cli\u003eForest humus or coconut coir for tropical authenticity\u003c\/li\u003e\n\u003cli\u003eCrushed limestone or eggshells mixed throughout — essential for cave-origin Cubaris\u003c\/li\u003e\n\u003cli\u003eDecaying hardwood pieces incorporated into substrate\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"\/products\/flake-soil-1l\"\u003eFlake soil\u003c\/a\u003e for added nutrition and structure\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eTop layer:\u003c\/strong\u003e Generous hardwood leaf litter — \u003ca href=\"\/products\/large-magnolia-leaves-for-isopods\"\u003emagnolia leaves\u003c\/a\u003e for long-lasting cover work particularly well. Add multiple cork bark hides spread throughout the enclosure. The more hiding options available, the more secure the colony feels and the more visible they become over time.\u003c\/p\u003e\n\u003ch2\u003eHumidity and the Moisture Gradient\u003c\/h2\u003e\n\u003cp\u003eMaintain humidity at 55–80% with a clear moisture gradient. Penguin\/White Side benefit from approximately 70% moist\/damp side and 30% drier side:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe moist 70%:\u003c\/strong\u003e Sphagnum moss patches and damp leaf litter. Keep consistently damp through misting or pouring water along this side.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe drier 30%:\u003c\/strong\u003e Drier substrate with leaf litter cover. Place protein foods on this side — they spoil quickly in damp conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe gradient lets the colony self-regulate. They'll move to moist areas for moulting and rehydration, then back to drier zones for foraging. Too dry causes moulting problems; waterlogged conditions cause health issues — moist not wet is the rule.\u003c\/p\u003e\n\u003ch2\u003eTemperature\u003c\/h2\u003e\n\u003cp\u003e20–28°C is the comfort range, with 25°C considered optimal for breeding. UK summer temperatures often fall within range; winter heating may be needed if your home gets cold. A low-wattage heat mat on the side of the enclosure (never underneath, to avoid drying substrate) connected to a thermostat keeps the colony stable.\u003c\/p\u003e\n\u003cp\u003eStable conditions matter more than hitting any specific point. Sudden temperature swings cause more stress than steady conditions at the cooler end of the range.\u003c\/p\u003e\n\u003ch2\u003eDiet\u003c\/h2\u003e\n\u003cp\u003ePenguin\/White Side have standard Cubaris dietary needs:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary diet (always available):\u003c\/strong\u003e Hardwood leaf litter (they reportedly prefer slightly decayed leaves over fresh ones), decaying white-rotted wood, forest moss, lichens\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVegetables (1–2x weekly):\u003c\/strong\u003e Carrot, courgette, sweet potato, butternut squash, mushrooms. Replace within 24–48 hours.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFruit (occasionally):\u003c\/strong\u003e Apple, banana — small amounts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProtein (essential — 1–2x weekly):\u003c\/strong\u003e Fish flakes, dried daphnia, silkworm pupae, freeze-dried peas, dried shrimp. Browse our \u003ca href=\"\/collections\/accessories\"\u003eaccessories collection\u003c\/a\u003e for the full range of protein supplements.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCalcium (essential — non-negotiable for cave Cubaris):\u003c\/strong\u003e Cuttlefish bone, crushed limestone, eggshells, calcium powder. Multiple sources distributed throughout the enclosure.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDespite their small size, they're enthusiastic eaters. Remove uneaten fresh food before it spoils to prevent mould issues.\u003c\/p\u003e\n\u003ch2\u003eBreeding\u003c\/h2\u003e\n\u003cp\u003ePenguin\/White Side follow a classic Cubaris breeding pattern — slow initial establishment followed by reliable moderate breeding once the colony settles.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEstablishment period:\u003c\/strong\u003e Allow 2–3 months for new colonies to settle before expecting significant breeding activity. This is normal for the species — don't assume something is wrong if you don't see babies immediately.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOnce established:\u003c\/strong\u003e Described as \"moderately prolific\" — comparable to other entry-level Cubaris like Panda King once colonies are going. A starter colony of 20 will produce reliable broods on a regular basis, gradually building population over time.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFor breeding success:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eStable temperatures (25°C optimal)\u003c\/li\u003e\n\u003cli\u003eConsistent humidity (higher end of range preferred for breeding)\u003c\/li\u003e\n\u003cli\u003eDeep substrate (15 cm) for burrowing\u003c\/li\u003e\n\u003cli\u003eAbundant calcium availability throughout\u003c\/li\u003e\n\u003cli\u003eRegular protein supplementation\u003c\/li\u003e\n\u003cli\u003ePlenty of hiding spots\u003c\/li\u003e\n\u003cli\u003eMinimal disturbance during establishment\u003c\/li\u003e\n\u003cli\u003eLarger starter groups (20+) provide better breeding potential and genetic diversity\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003ePatience is essential. Resist the urge to constantly check the enclosure during establishment. Undisturbed colonies establish faster and breed more reliably.\u003c\/p\u003e\n\u003ch2\u003ePair With Springtails\u003c\/h2\u003e\n\u003cp\u003eAdd a thriving \u003ca href=\"\/collections\/springtails-for-sale\"\u003espringtail culture\u003c\/a\u003e to any Penguin\/White Side setup. Springtails handle mould and microbial growth at a scale isopods can't manage, particularly important in the humid conditions Cubaris require. They coexist peacefully with Penguin\/White Side and form an essential cleanup partnership for tropical Cubaris setups.\u003c\/p\u003e\n\u003ch2\u003eWho Should Buy Penguin \/ Cubaris White Side Isopods?\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eIdeal for:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eKeepers wanting their first Cubaris experience without high cost or difficulty\u003c\/li\u003e\n\u003cli\u003eAnyone graduating from beginner species (Porcellio, Armadillidium) into the Cubaris world\u003c\/li\u003e\n\u003cli\u003eHobbyists attracted to penguin-like black-and-white colouration\u003c\/li\u003e\n\u003cli\u003eBudget-conscious customers wanting genuine Cubaris at accessible pricing\u003c\/li\u003e\n\u003cli\u003eThose building toward eventually keeping more demanding Cubaris\u003c\/li\u003e\n\u003cli\u003eBioactive setup owners wanting affordable tropical cleanup crew\u003c\/li\u003e\n\u003cli\u003eDisplay setup enthusiasts wanting subtle, distinctive Cubaris rather than bold designer morphs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNot ideal for:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eComplete beginners with no isopod experience — start with hardier species like \u003ca href=\"\/products\/dairy\"\u003eDairy Cow\u003c\/a\u003e first\u003c\/li\u003e\n\u003cli\u003eKeepers wanting larger, more visible isopods (they're small at 8–15 mm)\u003c\/li\u003e\n\u003cli\u003eAnyone unable to maintain tropical humidity (55–80%)\u003c\/li\u003e\n\u003cli\u003eThose expecting immediate breeding results\u003c\/li\u003e\n\u003cli\u003eSetups with shallow substrate — they need depth to burrow\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eRealistic Expectations\u003c\/h2\u003e\n\u003cp\u003ePenguin\/White Side are small Cubaris — at 8–15 mm, they're noticeably smaller than premium species like Rubber Ducky or Cappuccino. The smaller size means individual animals are less visually impactful than larger Cubaris, but it also means colonies can grow substantially without overcrowding standard enclosures.\u003c\/p\u003e\n\u003cp\u003eExpect primarily nocturnal activity. You'll see them most after lights go out, with daytime visibility increasing as colony numbers grow. A starter colony of 10 may seem reclusive; established colonies of 30+ become noticeably more active and observable.\u003c\/p\u003e\n\u003cp\u003ePattern intensity varies between individuals. Some specimens display particularly bold black-and-white contrast; others show more muted markings. Pattern intensity develops with age and good nutrition — given 2–3 months of stable conditions, juveniles develop into the bold penguin-patterned adults you see in marketing photos.\u003c\/p\u003e\n\u003cp\u003eDon't expect the explosive breeding of fast-breeding Porcellio. Penguin\/White Side build colonies steadily over months rather than weeks. Within 6–12 months of establishment you'll have meaningful population growth, but not the rapid expansion seen in beginner Armadillidium species.\u003c\/p\u003e\n\u003cp\u003eThe current 58% sale price (£12.50 for 10) represents exceptional value for a genuine Cubaris species. At full retail (£30), they're still reasonably priced. The discounted pricing makes them outright affordable for first-time Cubaris buyers and bioactive cleanup crew applications.\u003c\/p\u003e\n\u003ch2\u003eBuilding Your Setup\u003c\/h2\u003e\n\u003cp\u003eA complete Penguin\/White Side setup needs deep substrate components, abundant calcium-rich materials (especially limestone), generous leaf litter, and protein supplements. Browse our \u003ca href=\"\/collections\/accessories\"\u003eaccessories collection\u003c\/a\u003e for everything you need — enclosures, ventilation, leaf litter, calcium (cuttlebone, limestone), and protein supplements (daphnia, silkworm pupae, fish flakes, freeze-dried peas).\u003c\/p\u003e\n\u003cp\u003eFor a deeper guide to Cubaris species and morphs, see our blog post on \u003ca href=\"\/blogs\/isopods-useful-articles\/cubaris-isopods-that-you-should-know-about\"\u003e23 different types of Cubaris isopods you should know about\u003c\/a\u003e. Browse the full \u003ca href=\"\/collections\/cubaris-isopods\"\u003eCubaris collection\u003c\/a\u003e for more options.\u003c\/p\u003e","brand":"PostPods","offers":[{"title":"10","offer_id":45185689551142,"sku":"WSI10","price":12.5,"currency_code":"GBP","in_stock":true},{"title":"50","offer_id":45185689583910,"sku":"WSI50","price":50.0,"currency_code":"GBP","in_stock":true},{"title":"20","offer_id":45185689616678,"sku":"WSI20","price":22.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0759\/0707\/2294\/files\/penguin_isopod-424757.jpg?v=1744059956","url":"https:\/\/postpods.co.uk\/products\/penguin-isopods","provider":"Isopods For Sale UK | PostPods","version":"1.0","type":"link"}