Salmon Isopods (Caribodillo martinicensis) for Sale UK

Salmon Isopods are one of the most genuinely distinctive isopods in the UK hobby — a Caribbean species originating from Martinique in the French West Indies, displaying striking deep orange-pink colouration that genuinely resembles salmon sushi flesh. Where most pillbug-family isopods display darker or more muted tones, Salmon stand out with their warm pink-orange hue that catches the light beautifully against natural substrate. The colour is properly distinctive — not subtle accent shading, but bold colouration across the entire body that's immediately apparent from a distance. Importantly, older individuals develop deeper, more saturated salmon tones with age, so established colonies become visually richer over time.

What makes Salmon Isopods particularly worth keeping right now is their taxonomic significance. As of November 2025, the species was formally reclassified from Cubaris sp. 'Salmon' into a brand new monotypic genus — Caribodillo martinicensis. The new genus was specifically created for this species based on genetic barcoding (CO1) and morphological analysis, with the species being only the second Armadillidae isopod confirmed as endemic to the Lesser Antilles (alongside Cubaris depressa from Saint Vincent). Keeping Salmon Isopods now connects you to a species at the centre of cutting-edge isopod taxonomy — and to the only species currently described within the Caribodillo genus.

One naming note worth flagging: "Salmon Isopods" can technically refer to marine parasitic isopods that affect fish populations. The isopods sold here are entirely terrestrial, harmless Caribodillo species — completely different animals despite sharing the common name. If you've encountered the term in marine biology contexts, rest assured these are the pet-keeping terrestrial isopods, not the parasitic fish-affecting species.

Available in groups of 5, 10, or 20. Captive-bred stock from established UK colonies. 

Quick Care Summary

• Scientific Name: Caribodillo martinicensis Kästle, Binder, Jones & Coulis, 2025
• Formerly Known As: Cubaris sp. 'Salmon' (reclassified November 2025)
• Common Names: Salmon Isopod, Cubaris Salmon, Martinique Salmon
• Family: Armadillidae (genus Caribodillo — monotypic)
• Origin: Martinique, French West Indies (Caribbean) — endemic to the island
• Adult Size: 14–16 mm
• Lifespan: 2–4 years typical
• Difficulty: Easy to Medium — more accessible than demanding Asian Cubaris
• Temperature: 22–28°C (24–26°C optimal for breeding)
• Humidity: 60–85% with moisture gradient
• Ventilation: Low to Medium — balance airflow with humidity retention
• Conglobation: Yes — fully conglobates into tight defensive balls
• Behaviour: Peaceful, social, active anytime but mostly night-active, active burrowers
• Breeding: Moderate rate — year-round breeding under stable conditions

The 2025 Taxonomic Reclassification

This is genuinely significant — and worth understanding when you buy these isopods.

For years, Salmon Isopods circulated in the global hobby under the temporary name "Cubaris sp. 'Salmon'", reflecting both their resemblance to other Cubaris species and the lack of formal scientific description for the population. In November 2025, researchers Benedikt Kästle, Stephanie Binder, Nathan T. Jones, and Mathieu Coulis published a formal description in the journal Zoosystema, establishing both a new genus (Caribodillo) and the species name martinicensis based on genetic barcoding and morphological analysis.

The publication confirmed several genuinely important points:

• They're not actually Cubaris. Despite their long-standing trade name, genetic analysis placed them in a completely separate genus, more closely related to Venezillo than to true Cubaris.
• They're endemic to Martinique. The species is found only on this single Caribbean island — making them a genuine geographical rarity, not just a trade rarity.
• The genus is monotypic. Caribodillo currently contains only this one species. As more research is done in the Caribbean, additional Caribodillo species may eventually be described, but for now C. martinicensis stands alone in its genus.
• The type specimen comes from Morne Manioc, a hill in Sainte-Anne, Martinique. This specific locality detail signals the depth of the new research.

You'll likely still see them listed under their old name (Cubaris sp. 'Salmon') across many retailers — formal taxonomic updates take time to filter through the hobby. Both names refer to the same animal. The new Caribodillo martinicensis designation is the scientifically correct current name as of late 2025.

What Makes Salmon Isopods Special

Several factors have made Salmon one of the more genuinely distinctive isopods available:

The salmon-pink colouration is properly unusual. Where most Armadillidae-family isopods display dark grey, brown, black, or banded patterns, Salmon offer bold pink-orange tones across the entire body. The "salmon sushi" comparison isn't marketing stretch — the colour genuinely resembles the pink-orange hue of salmon flesh. Combined with their thick robust exoskeleton, the colour catches the light with a subtle sheen that makes them visually distinctive in any collection.

Colour deepens with age. A particularly satisfying detail: older individuals develop deeper, more saturated salmon tones. Younger isopods may appear lighter or more orange-toned, with the deeper rich salmon colouration developing as they mature. This means established colonies become visually richer over time — quite literally improving with age.

Caribbean endemic from Martinique. Salmon are one of relatively few terrestrial pillbug-family species in the UK hobby that originate from the Caribbean rather than Southeast Asia. The endemic status to Martinique gives them genuine geographical rarity — they're not just trade-rare, they're geographically restricted in nature.

Monotypic genus. As the only species currently described in the Caribodillo genus, Salmon Isopods are scientifically unique in a way few hobby species can match. Keeping them connects you to a species at the centre of current taxonomic research.

More forgiving than demanding Asian Cubaris. This is the central practical advantage. Where premium species like Rubber Ducky, Lemon Blue, or some specialist Thai Cubaris can be notoriously sensitive to husbandry mistakes, Salmon Isopods are noticeably more tolerant. They're still tropical isopods requiring proper conditions — they're not bulletproof beginner species — but they're meaningfully more accessible than the demanding end of the related Cubaris range.

Substantial size with proper presence. At 14–16 mm, Salmon are larger than many entry-level Cubaris like Murina or Penguin/White Side, making them more substantial display animals.

Reliable year-round breeding. Once established, Salmon breed throughout the year under stable conditions. Brood sizes are moderate rather than explosive, but production is consistent — colonies grow steadily over months rather than erupting then stagnating.

Full conglobation. Like other Armadillidae-family isopods, they roll into tight defensive balls when disturbed. The pink-orange tone in conglobated form creates a particularly distinctive defensive display.

Currently exceptional value. At the current 50% off sale price (£25 for 5), Salmon Isopods offer excellent value — distinctive Caribbean isopods at pricing comparable to common entry-level Cubaris species. Unusual for a visually distinctive endemic species with cutting-edge taxonomic significance.

How Salmon Isopods Compare to Other Pillbug-Family Species

Since Salmon are no longer technically Cubaris, comparisons need to be slightly recalibrated — but they remain useful for customers choosing between similar-looking pillbug-family isopods:

• vs Cubaris murina (Little Sea): Murina are the absolute entry-level Cubaris — smaller, cheaper, more prolific, but visually subtle. Salmon are larger Caribodillo with bold pink-orange colouration. Murina for ultimate beginner Cubaris; Salmon for stepping up to visually distinctive Caribbean species.
• vs Panda King: Panda Kings have bold black-and-white panda patterning. Salmon have warm pink-orange Caribbean colouration. Similar care difficulty — choose based on colour preference and whether you want the taxonomic significance of a Caribodillo.
• vs Pak Chong: Pak Chong are tricoloured Thai cave Cubaris (blue-grey/white/orange). Salmon are uniformly pink-orange Caribbean Caribodillo. Different geographical origins and colour schemes — Pak Chong for Asian cave aesthetics, Salmon for Caribbean tropical character with cutting-edge taxonomy.
• vs Cappuccino Isopods: Cappuccinos have marbled coffee-and-cream Cubaris patterning at larger size (20 mm). Salmon are slightly smaller Caribodillo with consistent pink-orange. Both sit in the "more advanced but accessible" tier — different aesthetic preferences entirely.
• vs Rubber Ducky: Rubber Duckies are the iconic premium Asian Cubaris — much more expensive, harder to keep, slower-breeding. Salmon offer comparable size and visual impact at dramatically more accessible pricing with meaningfully more forgiving care, plus the bonus of being a scientifically distinct genus.

Browse the full Cubaris collection for related species (where Salmon are still typically catalogued for now, given the recency of the reclassification).

Setting Up the Enclosure

A 6–10 litre plastic container or small glass terrarium works well for a starter colony of 5–10. Plastic tubs with clip-lock lids hold humidity reliably and are easy to maintain. Glass terrariums offer better display value for showcasing the salmon colouration.

Low to medium ventilation. Salmon need humidity (60–85%), which means restricting airflow more than tropical species like Ardentiella that need high ventilation. Drill a few small holes on opposite sides of the container for minimal cross-ventilation — enough to prevent stagnation but not so much that humidity drops below the comfort range. Cover holes with fine mesh to prevent escapes.

Keep the enclosure in dim, quiet conditions — Salmon prefer low-light environments reflecting their forest floor origins. Direct sunlight or bright artificial lighting causes stress.

Browse our accessories collection for appropriate enclosures, vents, and other essentials.

Substrate

Salmon are active burrowers and benefit from deep substrate — at least 8 cm (3+ inches). Adequate depth supports their burrowing behaviour and lets them seek moisture by digging down rather than relying solely on surface humidity.

Substrate composition:

• Organic topsoil base (pesticide-free)
• Sphagnum peat moss mixed throughout for moisture retention
• Crushed limestone or calcium powder incorporated
• Flake soil for added nutrition and structure
• Decaying hardwood pieces incorporated into substrate
• Pieces of rotting white wood (they specifically prefer this)
• Charcoal pieces (optional)

Top layer: Generous hardwood leaf litter — magnolia leaves work particularly well for long-lasting cover. Add multiple cork bark pieces, coconut shell halves, and lotus pods spread throughout. Multiple hiding options support their social behaviour.

Humidity and Temperature

Maintain humidity at 60–85% with a clear moisture gradient. Keep approximately one-third of the enclosure consistently moist with sphagnum moss patches, leaving the rest slightly drier. This gives the colony choice — they self-regulate by moving between zones.

The substrate should be visibly damp in the moist zone but never waterlogged. If you squeeze a small amount and water drips out, it's too wet. If the surface starts looking dried-out, mist immediately. Salmon don't tolerate drying out for extended periods.

Mist regularly with dechlorinated water. Sphagnum moss patches help retain moisture between mistings.

Temperature should be 22–28°C, with 24–26°C 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. Avoid sustained temperatures below 20°C.

Diet

Salmon Isopods are unfussy detritivores with broad appetites:

• Primary diet (always available): Hardwood leaf litter (oak, beech, magnolia), decaying rotting wood, white-rotted wood (they specifically favour this), forest moss, lichens
• Vegetables (1–2x weekly): Carrot, sweet potato, courgette, potato, leafy greens. Replace within 24–48 hours.
• Fruit (occasionally): Apple, banana, melon — small amounts
• Protein (essential — twice weekly minimum): Fish flakes, dried daphnia, dried shrimp, silkworm pupae, freeze-dried peas, invertebrate/reptile moults. They reportedly favour a slightly higher protein diet than typical isopods — don't skimp on protein supplementation. Browse our accessories collection for the full range of protein supplements.
• Calcium (essential — always available): Cuttlefish bone, crushed limestone, crushed oyster shell, eggshells. Multiple sources distributed throughout the enclosure.
• Algae: They reportedly consume algae naturally if it develops on damp surfaces.

They're notably good eaters that accept most offerings. Provide portions they can consume in a sitting — overfeeding attracts pests even in humid enclosures. Remove uneaten fresh foods within 24–48 hours to maintain enclosure hygiene.

Breeding

Salmon Isopods breed at a moderate rate under proper conditions. They're not explosive breeders, but colonies grow steadily and consistently throughout the year rather than in seasonal bursts.

Breeding observations:

• Year-round breeding when conditions remain stable
• Moderate brood sizes — small to average rather than explosive
• Females carry developing young in marsupium
• Live mancae (fully formed juveniles) emerge from the brood pouch
• Sub-adults often begin breeding before reaching full size

For breeding success:

• Stable temperatures (24–26°C optimal)
• Consistent humidity (60–85%)
• Adequate calcium availability throughout
• Regular protein supplementation (higher than typical isopods)
• Deep substrate (8+ cm) for burrowing
• Multiple hiding spots
• Minimal disturbance — stability matters more than active intervention
• Larger starter groups (10+) provide better breeding potential through genetic diversity

Patience pays off. Allow 2–3 months for new colonies to settle before expecting significant breeding activity. Once established, expect consistent moderate production rather than dramatic population booms. Within 6–12 months you'll see meaningful colony growth.

Pair With Springtails

Add a thriving springtail culture to any Salmon Isopod setup. The humid environment Salmon prefer also encourages mould development, particularly around the higher-protein foods this species needs. Springtails handle this microbial cleanup before it becomes a problem and coexist peacefully with Salmon. This isn't optional for high-humidity setups.

Who Should Buy Salmon Isopods?

Ideal for:

• Keepers with basic isopod experience ready to step up to more demanding species
• Anyone interested in cutting-edge isopod taxonomy (Caribodillo is brand-new science)
• Collectors interested in Caribbean isopod species (relatively rare in UK trade)
• Display setup enthusiasts wanting visually distinctive larger pillbugs
• High-humidity bioactive setup owners
• Patient keepers willing to wait through moderate breeding
• Bargain hunters — the current 50% sale price makes them exceptional value
• Anyone wanting a monotypic-genus species (Caribodillo currently contains only this one species)

Not ideal for:

• Complete beginners — start with hardier species like Dairy Cow or Porcellio scaber first
• Anyone unable to maintain tropical humidity (60–85%)
• Setups where temperature can't be kept above 20°C reliably
• Arid or low-humidity setups
• Keepers wanting explosive breeding rather than steady growth
• Reptile/amphibian feeder use — too valuable and slow-breeding to justify

Realistic Expectations

Newly arrived Salmon Isopods may take 2–3 weeks to acclimate before showing comfortable colony behaviour. During this initial period they'll likely remain hidden — this is normal acclimation, not a sign of poor health.

Colour deepens with age. Newly arrived juveniles may appear lighter or more orange-toned than the rich salmon colouration shown in marketing photos. Given 2–3 months of stable conditions and good nutrition, juveniles develop into the deeper-toned adults. The older the isopod, the darker and richer the colour — established colonies become visually richer over time.

Expect moderate breeding, not explosive growth. Salmon are reliable breeders rather than prolific ones. If you've kept fast-breeding species like Powder Orange or Dairy Cow, the pace of Salmon will feel slower. This is normal for the species and not a sign of husbandry problems.

Their tropical Caribbean origins mean they need consistent warmth year-round. UK winter temperatures often drop below their comfort range in unheated rooms — supplementary heating may be necessary depending on your home's temperatures during colder months.

The current 50% sale price (£25 for 5) represents exceptional value for distinctive Caribbean isopods with cutting-edge taxonomic significance. At full retail (£50), they're still reasonably priced for the visual impact and scientific uniqueness they deliver.

Building Your Setup

A complete Salmon Isopod setup needs deep substrate components, abundant calcium-rich materials, generous leaf litter, and protein supplements. Browse our accessories collection for everything you need — enclosures, ventilation, leaf litter, calcium (cuttlebone, limestone), and protein supplements (daphnia, silkworm pupae, fish flakes, freeze-dried peas).

For a deeper guide to Cubaris species and morphs (where Salmon are still catalogued during the transition to the new taxonomy), see our blog post on 23 different types of Cubaris isopods you should know about. Browse the full Cubaris collection for more options.