Rex guinea pig
- Adult size
- About 20–25 cm long; 0.7–1.2 kg
- Lifespan
- 5–7 years
- Origin
- United Kingdom
- Company
- Keep in pairs or small groups
- Friendly
- Relaxed
- Confident
- Wiry-coated
About the Rex guinea pig
The Rex guinea pig has a short, dense, wiry coat that stands on end, with no long guard hairs, giving it a rough, woolly texture. It is often compared with the Teddy, and the two are sometimes confused, though they are recognised as separate breeds in some standards.
Rex guinea pigs are generally hardy and easy to look after, making them good pets for families and first-time keepers.
Temperament
Rex guinea pigs are typically friendly, relaxed and confident. Many are sociable with people and become used to handling. Like all guinea pigs, they need the company of their own kind.
Housing
Provide a spacious, solid-floored enclosure with multiple hides and room to run. Keep them indoors or in well-protected housing with a stable, comfortable temperature. Clean bedding regularly to keep them healthy.
Diet
Feed unlimited hay, a daily selection of vitamin C-rich vegetables and a measured amount of guinea pig pellets. Always provide fresh water. Introduce new vegetables gradually.
Exercise & enrichment
Tunnels, hay piles and foraging toys keep them occupied. Floor time and gentle interaction help them bond. Support the chest and rear when lifting them.
Grooming
The coat needs very little grooming, occasionally a gentle brush with a soft brush. Check ears, nails and skin regularly.
Health
Rex guinea pigs may be prone to dry skin and ear wax build-up, similar to Teddies. They share common guinea pig risks such as scurvy, dental problems and respiratory infections. Regular weighing helps spot problems early.
Prone to
- Dry skin
- Ear wax build-up
- Vitamin C deficiency
- Dental problems
Call a vet if you notice
- Not eatingEmergency
- Breathing difficultyEmergency
- Scratching or head shaking
- Flaky skin or hair loss
- Drooling or weight loss
A vet with experience of exotic pets is best placed to help. Find one before you need them.
Common questions
What is the difference between a Rex and a Teddy guinea pig?
Both have short, dense coats that stand up. Breed standards distinguish them by coat texture and density, and they are recognised separately in some countries.
Are Rex guinea pigs good for beginners?
Yes. Their easy-care coat and friendly temperament make them good first guinea pigs.
Do Rex guinea pigs need grooming?
Very little. An occasional gentle brush and regular checks of ears, nails and skin are usually enough.
Written by the Petopedia editorial team to our editorial standards. General guidance, not veterinary advice.