Sunset Isopods (Troglodillo sp.) for Sale

Troglodillo sp. 'Sunset' is one of the most beautiful and sought-after warm-toned isopods in the UK hobby — a striking Thai species glowing in a sunset-inspired palette of bright-to-muted orange, set off by contrasting dark brown toward the rear and a charming yellow-to-orange face. The colour genuinely shifts with the light and across moult cycles, the warm orange tones showing at their best against dark substrate. With a somewhat flat, sturdy, well-defined segmented body and a face reminiscent of the coveted Rubber Ducky, the Sunset is a genuinely elegant, exotic-looking isopod — and a real prize for collectors who love warm colour.

What makes the Sunset particularly worth keeping is the combination of that exotic appearance with surprisingly manageable care. Previously known in the hobby as the "Sunset Queen" (and once classified under Cubaris before the genus was revised to Troglodillo), it's now a stably-bred Thai morph that's calm, active close to the ground, and confident whether kept in a group or smaller numbers. It's well-suited to keepers with a little experience, though its accessible nature means dedicated beginners can succeed too with attention to its cave-dwelling humidity needs. They sit alongside their genus-mates the Camouflage and Soil Troglodillo in the rare and rewarding Troglodillo genus.

As a cave-dwelling Thai species, the Sunset prefers a warm, humid, dimly-lit setup with plenty of hiding spaces and a deep, calcium-rich substrate. A quick note on behaviour: Troglodillo are cave-adapted and, unlike true Cubaris, have reduced conglobation — they're somewhat flat-bodied and don't reliably roll into a tight ball, relying instead on wedging into crevices and cover. It's part of what makes the genus distinctive.

Quick Care Summary

• Scientific Name: Troglodillo sp. 'Sunset' (formerly "Cubaris sp. 'Sunset Queen'")
• Common Names: Sunset Isopod, Sunset Queen, Troglodillo Sunset
• Family: Armadillidae
• Genus: Troglodillo
• Origin: Thailand — cave environments
• Adult Size: 12–20 mm — medium-sized
• Lifespan: 1.5–3 years typical
• Difficulty: Easy to Medium — accessible with attention to humidity and temperature
• Temperature: 20–25°C — avoid extremes and large swings
• Humidity: 65–80% with a moisture gradient
• Ventilation: Low to medium — balance airflow with humidity retention
• Conglobation: Reduced — cave-adapted, somewhat flat; doesn't reliably roll into a tight ball
• Behaviour: Calm, active close to the ground, shy; some daytime activity in larger colonies
• Breeding: Moderate; builds steadily once established

What Makes Sunset Isopods Special

Several factors have made the Sunset one of the most coveted warm-toned Troglodillo in the UK hobby:

The sunset-inspired colouration is genuinely beautiful. Largely orange in several hues per specimen — from bright to muted — with contrasting dark brown toward the rear and a yellow-to-orange face, they earn their name. The colour shifts attractively in different light and across moult cycles, with the warm orange tones showing at their best against dark soil. It's a sophisticated, elegant warm palette unlike most isopods.

The Rubber Ducky-like face. The Sunset shares the appealing rounded facial structure reminiscent of the famous Rubber Ducky, adding real charm to an already striking isopod. Combined with the sturdy, well-defined segmented body — almost like a little compact tank — they have genuine presence.

Genuine rarity. Rated high rarity, the Sunset isn't a species you'll see in every collection. For collectors, an established colony is a genuine prize and a standout warm-toned addition to a display.

Exotic looks, manageable care. Despite their exotic appearance, Sunsets are relatively accessible — calm, hardy once settled, and confident in groups or smaller numbers. They reward keepers who can provide their cave-style humidity without demanding the most exacting husbandry of the hardest species.

Interesting cave-dwelling natural history. As a Thai cave species, the Sunset brings a genuinely intriguing background — and a love of crevices, hides, and dim, humid conditions that makes for a naturalistic, characterful setup.

Striking display contrast. The warm orange against a naturalistic dark substrate, leaf litter, and cork bark makes for a beautiful display — the kind of warm-toned elegance that draws the eye in a planted enclosure.

How Sunset Compares to Other Troglodillo and Cubaris

If you're choosing between Troglodillo and warm-toned premium isopods, here's how the Sunset fits in:

• vs Camouflage (Troglodillo sp.): Both are rare cave-dwelling Thai/SE-Asian Troglodillo with reduced conglobation and similar humid, dim care. Camouflage show lemon-lime mottled tones; Sunsets glow warm orange. Natural companions in a Troglodillo collection — different colour palettes.
• vs Soil (Troglodillo sp.): Both are genus-mates with the same cave-dwelling care. Soil Troglodillo are larger, earth-toned burrowers; Sunsets are the warm orange display morph. Both rare Troglodillo — different looks, shared husbandry.
• vs Rubber Ducky (Cubaris sp.): They share the appealing rounded face, but Rubber Duckies are true Cubaris that conglobate fully, while Sunsets are flat-bodied Troglodillo with reduced rolling. Both premium display isopods — choose based on whether the warm orange or the iconic duck-face appeals.
• vs Amber Firefly (Cubaris sp.): Both are warm-toned premium isopods. Amber Fireflies are amber-glowing Cubaris; Sunsets are orange-and-brown Troglodillo. Different genera and rolling behaviour — both genuine warm-toned display species.

Browse the full Troglodillo collection for related species, or the Cubaris collection for more premium display isopods.

Setting Up the Enclosure

A 6–10 litre container with a secure lid suits a starter colony. As a cave-dwelling species, the Sunset wants a dim, humid, well-structured setup. Ventilation should be low to medium — enough to prevent stagnation, but not so much that it dries out the humidity they need. The 3L Braplast tub works for starter colonies, with larger housing as the colony grows; our Braplast vent plugs help maintain humidity while preventing tiny mancae from escaping.

Provide plenty of hiding spaces — cork bark, flat stones, and crevices that mimic their cave habitat. They feel most secure (and feed and breed best) with abundant cover. Pieces of limestone or similar calcium-rich rock closely mimic their natural cave environment and are genuinely appreciated. Keep the enclosure dim and out of direct sunlight; the warm orange colouration shows beautifully against dark substrate under gentle indirect lighting. Browse our accessories collection for appropriate enclosures, vents, and other essentials.

Substrate

Build a deep, humid, calcium-rich substrate appropriate for cave-dwelling Troglodillo:

• Organic topsoil base (pesticide-free) as the foundation
• Sphagnum peat moss mixed throughout for moisture retention
• Flake soil for added nutrition and structure
• Generous crushed limestone or cave-mimicking calcium rock throughout
• Decaying white-rotted hardwood pieces incorporated throughout
• Forest moss for humidity and grazing

Substrate depth: 6–10 cm to support burrowing and help maintain stable humidity at lower levels.

Top layer: Generous hardwood leaf litter — magnolia leaves work particularly well for long-lasting cover. Add cork bark, decaying white wood, and forest moss for the hiding spots and grazing this cave species relies on. Plenty of cover helps them feel secure, which in turn promotes feeding and breeding.

Humidity and Temperature

Maintain humidity at 65–80% with a moisture gradient. Keep the majority of the enclosure consistently moist (around 70%) using sphagnum moss and damp leaf litter, leaving a slightly drier area for choice. The substrate should be damp but never waterlogged. As cave dwellers, Sunsets genuinely appreciate consistent humidity and plenty of cover.

Don't overwater. As one PostPods customer noted about cave-dwelling isopods, following proper care guidance prevents the most common fatal mistake — too much moisture. While the Sunset needs consistent humidity, waterlogged substrate causes problems. Maintain damp-but-not-wet conditions and mist to top up humidity rather than saturating the substrate.

Temperature should be around 20–25°C. The single most important point with temperature is to avoid extremes and large swings — both excessive heat and sudden fluctuations can stress this cave species, which in the wild experiences the stable temperatures of a cave environment. Keep them in a stable, moderately warm spot away from radiators, direct sun, and draughts. In cooler homes a low-wattage heat mat on the side (never underneath) connected to a thermostat helps maintain steady warmth without drying the substrate.

Diet

Sunsets are detritivores with standard Troglodillo dietary needs — think about what would be available on a Thai cave floor:

• Primary diet (always available): Decaying organic matter, rotting white wood, hardwood leaf litter (oak, beech, magnolia), forest moss
• Vegetables (1–2x weekly): Sweet potato, carrot, courgette, squash, cucumber. Replace within 24–48 hours.
• Fruit (occasionally): Soft, sweet fruits — banana, mango, apple — in small amounts
• Protein (essential — 1–2x weekly): Fish flakes or pellets, dried shrimp, freeze-dried bloodworms. Supports breeding and helps prevent cannibalism. Browse our accessories collection for the full range of protein supplements.
• Calcium (essential — always available): Cuttlefish bone, crushed limestone, oyster shell, eggshells. Given their cave/limestone origins, calcium availability is particularly relevant for healthy moulting.

Important: don't overfeed. In the humid conditions Sunsets require, excess food creates mould. Provide small portions consumed within 24–48 hours and remove uneaten fresh food promptly. A thriving springtail culture helps manage any mould before it threatens the colony.

Breeding

Sunsets breed at a moderate rate once established, building colonies steadily in stable, secure conditions.

Breeding characteristics:

• Females carry developing young in a brood pouch (marsupium) and release fully-formed mancae
• Plenty of cover and crevices help them feel secure enough to breed
• Colony establishment takes time, then builds steadily
• The warm orange colouration develops as juveniles mature, intensifying with moults

For breeding success:

• Stable, moderately warm temperatures (20–25°C, avoiding swings)
• Consistent humidity (65–80%) with a gradient
• Deep, calcium-rich substrate
• Abundant cover, crevices, and limestone
• Adequate protein (1–2x weekly)
• Minimal disturbance during establishment
• Larger starter groups establish faster and provide genetic diversity

The initial settling period may feel slow, but once a Sunset colony establishes in secure, stable conditions, it builds steadily — genuinely rewarding for keepers willing to be patient.

Pair With Springtails

Add a thriving springtail culture to any Sunset setup. Springtails handle mould and microbial growth at a scale isopods can't manage — particularly important in the humid conditions these cave-dwelling Troglodillo require, and especially valuable for protecting a premium colony from mould blooms around protein foods. They coexist peacefully with Sunsets and form an essential cleanup partnership.

Who Should Buy Sunset Isopods?

Ideal for:

• Keepers who appreciate warm orange-and-brown colouration
• Collectors seeking a rare, distinctive Troglodillo
• Anyone drawn to the Rubber Ducky-like face in a warm-toned species
• Display colony enthusiasts wanting genuine visual impact
• Keepers who can provide stable, humid, dimly-lit cave-style conditions
• Those building a Troglodillo collection (Sunset, Camouflage, Soil)

Not ideal for:

• Complete beginners with no experience — start with hardier species like Dairy Cow or accessible Cubaris like Cubaris murina first
• Low-humidity or arid setups (they need consistent moisture)
• Setups prone to temperature swings or overheating (stability matters)
• Those wanting conglobating ball-rolling species (Troglodillo have reduced rolling)
• Keepers wanting fast, prolific cleanup crews

Realistic Expectations

They have reduced conglobation. Unlike true Cubaris, Troglodillo are cave-adapted and somewhat flat-bodied — they don't reliably roll into a tight ball, instead wedging into crevices and cover. This is normal for the genus, not a defect; if you're expecting full pillbug ball-rolling, the Sunset works differently.

Colour varies and develops with maturity. Each specimen shows its own range of orange hues, and colouration shifts with light and across moult cycles. Juveniles may appear less vividly coloured, developing the full warm sunset tones as they mature in good conditions.

They're shy cave dwellers. Sunsets appreciate dim, humid, well-covered setups and may spend time hidden among crevices and substrate — though larger colonies show some daytime activity. Providing plenty of cover makes them feel secure and, over time, more visible.

Stability matters most. The key husbandry points are consistent humidity and stable, moderately warm temperatures — avoid both drying out and large temperature swings. Get the stable cave-style conditions right and they're genuinely rewarding.

Breeding starts slow, then builds. Like many cave species, the initial establishment period may feel quiet, but a settled colony builds steadily. Patience through the early phase is rewarded.

Building Your Setup

A complete Sunset setup needs deep humid substrate, abundant calcium and limestone, generous leaf litter, plenty of cork bark and crevice hides, and protein supplements. Browse our accessories collection for everything you need — enclosures, ventilation, leaf litter, calcium (cuttlebone, limestone, oyster shell), and protein supplements.

Browse the full Troglodillo collection for genus-mates like the Camouflage and Soil Troglodillo, or read our blog post on Cubaris isopods you should know about for guidance on these cave-dwelling relatives.