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Little sea isopod (Cubaris murina)

Little sea isopod (Cubaris murina), typical appearance of the species

Invertebrates · Difficulty: Beginner

Key facts and care guidance for Little sea isopod (Cubaris murina) (origin: Pantropical / the Caribbean, introduced worldwide). Adult size around approx. 1.0–1.2 cm. Life expectancy approx. 1.5–3 years. The values below are carefully researched guidance.

Short answers

Little sea isopod: How big does the enclosure need to be?

A box from 20×15×15 cm for a starter colony (10–15 animals); a colony animal.

Little sea isopod: What temperature does it need?

Daytime 20–25 °C, at night 18–22 °C.

Little sea isopod: Does it need UVB lighting?

UVB: No UVB needed.

Little sea isopod: How long do they live?

Life expectancy: approx. 1.5–3 years.

Little sea isopod: Is it suitable for beginners?

Yes – it is considered suitable for beginners (difficulty: Beginner).

Climate

Daytime temperature
20–25 °C
Night temperature
18–22 °C
Basking spot
—
Humidity
70–85 %
UVB
No UVB needed

Enclosure

Minimum size
a box from 20×15×15 cm for a starter colony (10–15 animals); a colony animal
Substrate
Humus-rich soil or coco humus with leaf litter (oak, beech), white-rotted wood and moss; a damp-to-dry gradient, substrate at least 3 cm

Feeding

Food
Fallen leaves, rotten pale wood, vegetables; protein (fish food or dried shrimp), calcium (cuttlebone)
Feeding interval
protein and vegetables 1–2×/week, leaf litter and wood always available

Key facts

Adult size
approx. 1.0–1.2 cm
Life expectancy
approx. 1.5–3 years
Origin
Pantropical / the Caribbean, introduced worldwide
Protection status
Not protected (no CITES, no German Federal Nature Conservation Act listing)
Brumation
None
Cohabitation
Colony. Isopods are gregarious and are kept as a group – 10 to 20 animals to start; a single animal cannot breed. Only one species and one colour morph per tub: a faster-breeding species crowds out the slower one, and morphs of the same species interbreed back within two to three generations.

Notes

An easy-care beginner's Cubaris; the damp corner must never dry out completely; cuttlebone or calcium matters for moulting; watch the ventilation (mites and mould). The colour forms (Mandarin, Papaya) are the same species.

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Related species

All species in the care wiki →

What you need to start

To keep Little sea isopod (Cubaris murina) you typically need: a suitable enclosure (a box from 20×15×15 cm for a starter colony (10–15 animals); a colony animal), substrate (Humus-rich soil or coco humus with leaf litter (oak, beech), white-rotted wood and moss; a damp-to-dry gradient, substrate at least 3 cm), a heat source with a thermostat, UVB lighting, thermometer and hygrometer, a water dish and hides. You will find equipment in the Reptoria marketplace.

The complete, interactive care database is in the Reptoria app.

Last updated: 9 October 2026 · Editor: Reptoria editorial team · Sources include: https://bcomushi.com/blogs/podformation/can-different-isopods-live-together, https://en.wikipedia.org/wiki/Cubaris_murina, https://en.wikipedia.org/wiki/Woodlouse, https://insektenliebe.com/en/keeping-reports/cubaris-murina/, https://postpods.co.uk/blogs/isopods-useful-articles/cubaris-murina-care-guide

All values are non-binding guidance and do not replace expert advice. Research thoroughly from several sources before acquiring and keeping an animal, and observe the applicable law (species and animal protection in particular).