Roborovski dwarf hamster (Phodopus roborovskii)

Short answers

Roborovski dwarf hamster: How big does the enclosure need to be?

From 120×50×50 cm (recommended size per the Kaninchenwiese small mammal overview 2025; bmt hamster leaflet 2025: the enclosure must not be smaller than 100×50×50 cm, TVT leaflet no. 162 dwarf hamsters 2025). Bigger is better; the Austrian legal minimum is only 60×30×40 cm. Wheel at least 25 cm (Roborovski at least 20 cm) with a solid running surface.

Roborovski dwarf hamster: What temperature does it need?

Daytime 18–24 °C room temperature (bmt hamster leaflet 2025); in the cold activity drops to near immobility, above 26 °C heat stress is likely.

Roborovski dwarf hamster: Does it need UVB lighting?

UVB: Not needed – nocturnal mammal; normal daylight in the room with a regular day-night rhythm is enough; do not place the enclosure in direct sun.

Roborovski dwarf hamster: How long do they live?

Life expectancy: 2–3 years, on average about 2 years.

Roborovski dwarf hamster: Is it suitable for beginners?

Yes – it is considered suitable for beginners (difficulty: Beginner (purely an animal to watch)).

Climate

Daytime temperature

18–24 °C room temperature (bmt hamster leaflet 2025); in the cold activity drops to near immobility, above 26 °C heat stress is likely.

Humidity

40–60 % (normal indoor air, no extra humidification).

UVB

Not needed – nocturnal mammal; normal daylight in the room with a regular day-night rhythm is enough; do not place the enclosure in direct sun.

Enclosure

Minimum size

from 120×50×50 cm (recommended size per the Kaninchenwiese small mammal overview 2025; bmt hamster leaflet 2025: the enclosure must not be smaller than 100×50×50 cm, TVT leaflet no. 162 dwarf hamsters 2025). Bigger is better; the Austrian legal minimum is only 60×30×40 cm. Wheel at least 25 cm (Roborovski at least 20 cm) with a solid running surface.

Substrate

At least 20 cm deep bedding with hay and straw, a large area of sand (play sand or chinchilla sand) for digging and a sand bath – the species comes from sand dunes.

Feeding

Food

Fine seed and grass seed mix, sparse and low in fat, without sugar and with little grain; plus dried herbs, hay and some fresh herbs. Several times a week a little animal protein (dried insects).

Feeding interval

Feed daily in the early evening and scatter the food; remove fresh leftovers the next morning.

Key facts

Adult size

Head-body length 5.5–8 cm, tail under 1 cm; weight 18–28 g – the smallest pet hamster.

Life expectancy

2–3 years, on average about 2 years.

Origin

Deserts and sand dunes of the Gobi in Mongolia and northern China and adjacent areas in Tuva and Kazakhstan.

Protection status

No wildlife-protection papers needed, not on the EU invasive species list; not threatened according to the IUCN.

Brumation

None – keep at a steady room temperature indoors. Short torpor in cold and short days is possible but undesirable for pets.

Cohabitation

Solitary. Roborovskis are more tolerant than other dwarf hamsters, but groups in captivity often end in fights; solitary housing is the less stressful option (bmt). Anyone taking on a harmonious sibling pair needs a spare enclosure for immediate separation.

Notes

Extremely fast and skittish – risk of escape during cleaning and free-roaming. Runs a lot; a good wheel and plenty of floor space matter more than levels.

Do you keep this species?

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Look for Roborovski dwarf hamster (Phodopus roborovskii) in the marketplace →

Related species

• Campbell's dwarf hamster (Phodopus campbelli) – Beginner
• Djungarian hamster (winter white dwarf hamster) (Phodopus sungorus) – Beginner
• Chinese hamster (Chinese striped hamster) (Cricetulus griseus) – Beginner
• Golden hamster (Syrian hamster) (Mesocricetus auratus) – Beginner (but not for children under about 12 – nocturnal)
• African pygmy mouse (Mus minutoides) – Intermediate
• Four-toed hedgehog (African pygmy hedgehog) (Atelerix albiventris) – Intermediate
• Chinchilla (long-tailed chinchilla) (Chinchilla lanigera) – Intermediate
• Common degu (Octodon degus) – Intermediate

All species in the care wiki →

What you need to start

To keep Roborovski dwarf hamster (Phodopus roborovskii) you typically need: a suitable enclosure (from 120×50×50 cm (recommended size per the Kaninchenwiese small mammal overview 2025; bmt hamster leaflet 2025: the enclosure must not be smaller than 100×50×50 cm, TVT leaflet no. 162 dwarf hamsters 2025). Bigger is better; the Austrian legal minimum is only 60×30×40 cm. Wheel at least 25 cm (Roborovski at least 20 cm) with a solid running surface.), substrate (At least 20 cm deep bedding with hay and straw, a large area of sand (play sand or chinchilla sand) for digging and a sand bath – the species comes from sand dunes.), a heat source with a thermostat, thermometer and hygrometer, a water dish and hides. You will find equipment in the Reptoria marketplace.