Invertebrate · Isopod
Rubber ducky isopod care guide
Cubaris sp. 'Rubber Ducky'
The rubber ducky isopod is a advanced-level isopod from Thailand (cave/limestone habitat). Adults reach Body 1.2–1.5 cm and live 2–3 years in captivity. Slow-breeding showpiece colony. Needs high humidity.
- Enclosure 30 × 20 × 20 cm
- Temp 22–26°C
- Humidity 75–90%
How much does a rubber ducky isopod cost in Canada?
Rubber ducky isopod quick facts
- Skill level
- Advanced
- Adult size
- Body 1.2–1.5 cm
- Lifespan
- 2–3 years
- Activity
- Nocturnal
- Native range
- Thailand (cave/limestone habitat)
- Minimum enclosure
- 30 × 20 × 20 cm (12 × 8 × 8 in, ≈ 3 US gal)
- Housing
- A colony species – best kept in a group.
- Temperature
- 22–26°C
- Humidity
- 75–90%
- UVB
- Not needed
- Diet
- Detritivore – leaf litter, rotting wood, moss, protein
- Bioactive style
- Invertebrate colony
Rubber ducky isopod enclosure & bioactive setup
Give one adult at least 30 × 20 × 20 cm (12 × 8 × 8 inches). A colony species – best kept in a group. This species suits a invertebrate colony bioactive build.
- Leaf litter2 cm
- Jurassic ABG Terrarium Mix8 cm
Leaf litter is food here, not decoration – keep a thick layer topped up. Keep one side damper than the other.
Temperature: 22–26°C. Humidity: 75–90%. UVB: Not needed.
What does a rubber ducky isopod eat?
Detritivore – leaf litter, rotting wood, moss, protein. Provide leaf litter and soft rotting wood constantly with small protein offerings weekly.
Handling, temperament & health
Delicate showpiece; avoid handling and disturbing the colony.
Health watch: Sensitive to drying out and to temperature spikes above 27°C.
Cleaning & maintenance schedule
Daily
- Nothing needed most days.
Weekly
- Mist the damp side; add vegetables or protein food in small amounts and remove leftovers after 24–48 h.
Monthly
- Top up leaf litter and add a calcium source (cuttlebone).
- Thin out the colony or split it if it gets crowded.
Yearly
- Replace about a third of the soil, which turns into frass over time.
Recommended for a rubber ducky isopod bioactive
Quantities are for one minimum-size enclosure (30 × 20 × 20 cm).
Rubber ducky isopod FAQ
Is the rubber ducky isopod good for beginners?
The rubber ducky isopod is an advanced species – best for experienced keepers. Delicate showpiece; avoid handling and disturbing the colony.
What size enclosure does a rubber ducky isopod need?
At least 30 × 20 × 20 cm (about 12 × 8 × 8 inches, roughly 3 US gallons) for one adult. A colony species – best kept in a group.
How much does a rubber ducky isopod cost in Canada?
Typically $80–200 CAD to buy, about $100–170 CAD for a complete bioactive enclosure, and $30–60 CAD a year to keep.
What temperature and humidity does a rubber ducky isopod need?
Temperature: 22–26°C. Humidity: 75–90%.
What does a rubber ducky isopod eat?
Detritivore – leaf litter, rotting wood, moss, protein. Provide leaf litter and soft rotting wood constantly with small protein offerings weekly.
Similar species
This care sheet is general guidance from One Bioactive, not veterinary advice. Needs vary with age, locality and individual animals – confirm with your breeder and an exotics vet. Prices are typical Canadian ranges in CAD and change over time.



