Quick Answer
Cubaris are "designer" isopods from Southeast Asian limestone caves that are not hard to keep but are unforgiving. Give them 3-4 inches of deep substrate rich in rotten wood, leaf litter, and crushed limestone or oyster shell, keep humidity at 75-80% with 24-28°C (never below 20°C), and use lower ventilation for more stagnant but mold-free air. They are shy, nocturnal burrowers with small broods, so provide dried shrimp protein, constant calcium, and minimal disturbance.
The "Designer" Genus
Cubaris is a genus of isopods primarily found in Southeast Asia, particularly Thailand. They are famous for their incredibly diverse and often cute appearances—most notably the "Rubber Ducky" isopod, which looks exactly like its namesake.
"Cubaris aren't necessarily 'hard' to keep, but they are unforgiving. Success comes from mimicking their limestone cave origins."
Cubaris care parameters
| Parameter | Target | Note |
|---|---|---|
| Temperature | 24°C to 28°C | Can crash below 20°C |
| Humidity | 75% to 80% | Keep moss side very damp |
| Substrate depth | 3 to 4 inches | They love to burrow |
| Ventilation | Lower than Porcellio | Stagnant but not moldy air |
| Calcium | Required, not optional | Limestone or oyster shell |
Natural Habitat
Unlike the hardy species found in your backyard, many Cubaris species originate from limestone caves and tropical forest floors. This means they prefer:
Deep Substrate
They love to burrow. Provide at least 3-4 inches of substrate.
Lower Ventilation
They require higher CO2 levels and more stagnant (but not moldy) air than Porcellio species.
Substrate & Calcium
For Cubaris, calcium is not a supplement—it's a requirement. Their natural environment is limestone-rich.
The Cubaris Mix
- Heavy mix of rotten wood and leaf litter
- Limestone rock or crushed oyster shells mixed into the soil
- A thick layer of sphagnum moss on the hydration side
Humidity & Heat
Cubaris thrive in high humidity and slightly warmer temperatures than average species.
Humidity
Aim for 75-80% humidity. Keep the moss side very damp, and mist the dry side occasionally.
Temperature
Maintain 24°C - 28°C. They are sensitive to cold and can crash if temperatures drop below 20°C.
Diet & Behavior
They are shy and nocturnal. Don't be alarmed if you don't see them for weeks—they are likely busy underground!
Pro Tips:
- ✨ Protein: They love dried shrimp and minnows.
- ✨ Patience: Cubaris have smaller broods and slower growth rates.
- ✨ Stability: Avoid checking on them too often; they dislike disturbance.
FAQ: Cubaris care
Are Cubaris isopods hard to keep?
Cubaris are not necessarily hard, but they are unforgiving. Success comes from mimicking their limestone-cave origins with deep substrate, added calcium, stable high humidity, and minimal disturbance.
What temperature and humidity do Cubaris need?
Aim for 24°C to 28°C and around 75-80% humidity. Keep the moss side very damp, mist the dry side occasionally, and avoid letting temperatures drop below 20°C.
Why don't I see my Cubaris isopods?
Cubaris are shy, nocturnal burrowers, so they may stay hidden for weeks. Provide deep substrate, avoid frequent checks, and be patient as they have smaller broods and slower growth.
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