Small Pet Health
Gerbil Care in the UK — Housing, Pairs, Diet & Wet Tail
Published Last updated 4 min read
Quick answer
UK gerbils should live in same-sex pairs or small groups in a spacious tank with deep bedding for digging. According to the RSPCA, wet tail (diarrhoea with soiled hindquarters) is an emergency — seek vet care the same day.
Housing
According to the RSPCA, gerbils are desert-adapted burrowers who need space to dig and explore:
- Enclosure — glass tank with secure mesh lid or gerbil-safe cage; deep bedding (paper-based or aspen — avoid pine and cedar shavings)
- Digging depth — at least 20–30 cm of substrate where possible; digging is essential behaviour
- Nesting — hay and shredded paper in a house or box for sleeping
- Wheel — solid surface, large enough that the back stays straight; open rung wheels cause injury
- Location — quiet room, stable temperature, away from direct sun and draughts
- Cleaning — partial cleans preserving some nest material; full strip-outs stress gerbils and disrupt scent groups
Gerbils gnaw constantly — provide untreated wood chews and cardboard for dental wear.
Pairs and groups
According to RSPCA guidance, gerbils are highly social and should not live alone unless a bereaved gerbil cannot be re-paired after careful introduction attempts.
| Approach | RSPCA recommendation |
|---|---|
| Best option | Same-sex littermate pair from the same litter |
| Groups | Small same-sex groups possible if raised together |
| Introductions | Adult introductions often fail — split immediately if fighting |
| Mixed species | Never with hamsters, mice or other rodents |
Signs of group harmony: sleeping together, grooming each other, shared burrows. Signs of conflict: chasing, biting, vocal squeaking, one gerbil excluded from food or sleep areas — separate into duplicate setups if needed.
Diet
According to the RSPCA and PDSA:
- Base diet — complete gerbil mix or pellet formulated for gerbils
- Fresh food — small amounts of carrot, broccoli, apple (no seeds) or herbs — introduce gradually
- Protein — occasional mealworm or plain scrambled egg as treat; not excessive
- Water — bottle checked daily for blockages; fresh water always
Avoid sudden diet changes — they trigger digestive upset. Remove uneaten fresh food within a few hours.
Handling and enrichment
Gerbils are generally friendly but fast — handle low over a safe surface or in a playpen. Scoop from below rather than grabbing from above.
Enrichment ideas from RSPCA welfare guidance:
- Cardboard tubes and boxes
- Sand bath with chinchilla sand ( shallow dish, not dust bath powder)
- Scatter feeding to encourage foraging
- Tunnels and platforms
Wet tail and other health concerns
Wet tail
Despite the name (more associated with hamsters), wet tail in gerbils means diarrhoea with wet, soiled fur around the tail and hind legs. According to the PDSA, causes include:
- Bacterial infection (e.g. Lawsonia, Campylobacter)
- Stress from overcrowding, recent transport or bereavement
- Diet change or contaminated food
This is an emergency. Gerbils dehydrate and decline within hours. Contact your vet immediately — do not wait or rely on shop-bought remedies alone.
Other warning signs
Same-day vet attention if you notice:
- Not eating or drinking
- Lethargy or hunched posture
- Laboured breathing or nasal discharge
- Overgrown teeth or weight loss
- Seizures or head tilt
Register with a small-animal vet before problems arise — gerbils hide illness until advanced.
Buying gerbils responsibly
According to the RSPCA, buy from a reputable breeder or rescue — not pet shops sourcing unknown backgrounds without health history. Ask about age, sex, group compatibility and recent health.
Minimum age at homing is typically 6–8 weeks, already bonded in pairs.
Sources & further reading
Facts in this guide are rewritten in plain English from publicly available UK advice. We name the organisation where a specific point comes from their guidance. Links below go to the original pages — use them to read the source material directly.
PETHEALTH+ is independent. These organisations do not sponsor, approve, or partner with this website. Guidance checked against sources listed below (last updated 2026-06-25).
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Frequently Asked Questions
- Should gerbils live alone or in pairs?
- Gerbils are social and should live in same-sex pairs or small groups from a young age — ideally littermates. Introducing adults is difficult and often results in fighting. Never house gerbils with hamsters or other species.
- What is wet tail in gerbils?
- Wet tail describes diarrhoea with matted fur around the tail and hindquarters. It indicates serious illness — often bacterial infection or stress-related gut disease. It is an emergency; contact your vet immediately.
- What should I feed my gerbil?
- A balanced gerbil mix or pellet plus small amounts of safe fresh vegetables. Provide constant access to fresh water. Avoid sudden diet changes and high-fat or sugary treats.
- How big should a gerbil cage be?
- The RSPCA recommends as large a tank or enclosure as you can provide, with deep bedding for digging — gerbils are active burrowers. Multi-level space and a solid-based wheel help meet exercise needs.