Cubaris Black Diamond Isopods (Cubaris sp.) are a striking species from Thailand, notable for their dark grey to purplish colouration with distinctive white or yellow tail sections. Originating from the cool, humid limestone caves of Southeast Asia, these larger-bodied Cubaris prefer temperatures on the cooler end compared to many tropical isopods. They're a rewarding species for keepers with some experience, though they do require attention to temperature stability and humidity levels.
A Glimpse
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Origin: Thailand
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Scientific Name: Cubaris sp. "Black Diamond"
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Difficulty Level: Medium
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Average Size: 14mm
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Rarity: Very Rare
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Lifespan: 2-3 years
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Temperature: 70-80°F (21°C-27°C)
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Ventilation: Low
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Humidity: 70-80%
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Favourite food: Mango, carrots, vegetables
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Supplements: Crushed limestone, cuttlefish bone
Black Diamond Isopods: Introduction
Black Diamond isopods are cave-dwelling Cubaris that have adapted to the cool limestone environments of Thailand. Unlike many tropical Cubaris species that thrive in warmer conditions, Black Diamonds actually prefer cooler temperatures and can become stressed or experience higher mortality rates if kept too warm. They're typically observed in small groups in the wild, traversing moist cave floors and rocky surfaces.
Black Diamond Isopods: Physical Traits and Characteristics
- These are one of the larger Cubaris species, reaching approximately 14mm at maturity.
- Their exoskeleton displays a beautiful dark grey to purplish hue, with contrasting white or yellow colouration on the tail segments.
- Like other Cubaris, they possess the ability to roll into a ball when threatened.
- Their colouration makes them visually distinct from other species in the hobby.
- They are relatively shy and prefer to stay hidden, making adequate cover essential.
- Breeding rate is moderate compared to some of the more prolific species.
Black Diamond Isopods: Diet
Black Diamond isopods are detritivores like all isopods, feeding primarily on decaying organic matter. In captivity, they've shown a particular fondness for mango and carrots, alongside the standard isopod diet.
Calcium is essential for healthy exoskeleton development and moulting. Provide sources such as crushed limestone, cuttlefish bone, or powdered eggshells. Given their limestone cave origins, calcium supplementation is particularly important for this species.
Protein should be offered regularly to support breeding and overall health. Dried shrimp, fish flakes, and commercial isopod food mixes work well.
Leaf litter forms the foundation of their diet. Provide pesticide-free oak, magnolia, or other hardwood leaves throughout the enclosure.
Black Diamond Isopods: Habitat
Creating the right environment is crucial for Black Diamond isopods, particularly regarding temperature:
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Temperature: This is critical - Black Diamond isopods prefer cooler conditions between 60°F-75°F (15°C-24°C). Higher temperatures can cause stress and increased mortality. This makes them unsuitable for heated reptile enclosures.
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Humidity: Maintain 70-80% humidity with a moisture gradient - one side wetter with sphagnum moss, the other drier.
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Substrate: Use a deep substrate mix (at least 2.5 inches) incorporating organic matter, leaf litter, and limestone pieces. Avoid coco coir as the primary substrate for Cubaris - a soil-based mix with added limestone is more appropriate.
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Hiding spots: Provide plenty of cover using flat cork bark, rotten wood, and leaf litter. These isopods are shy and will spend most of their time hidden.
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Ventilation: Keep ventilation low to maintain humidity, but ensure some airflow to prevent stagnation.
Black Diamond Isopods: Behaviour
Black Diamond isopods are secretive creatures that prefer to remain hidden. Don't expect to see them often - they'll spend most of their time beneath substrate, cork bark, and leaf litter. They're not particularly interactive pets and are best suited to keepers who appreciate observing natural behaviours rather than handling.
Their moderate breeding rate means colonies establish slowly. Patience is required, and disturbing the enclosure frequently can set back breeding efforts.
Who Are Black Diamond Isopods Suited For?
These isopods are best suited for keepers with some prior Cubaris experience who can provide stable, cooler conditions. They're not ideal for heated bioactive setups or for those wanting a fast-breeding cleanup crew. However, for collectors who appreciate unusual colouration and can meet their specific temperature requirements, Black Diamond isopods make a distinctive and rewarding addition to any collection.
