Guinea pig covered in short, dense curly fur. Similar to Teddy but with coarser texture. Sturdy build with a calm temperament.
The Rex guinea pig is characterized by its short, coarse, upright coat (approximately 1.5–2 cm in length), produced by a genetic mutation causing the hair shafts to grow without the normal downward curl. Adults measure 20–30 cm and weigh 800–1,300 g. The coat has a rougher, more bristly texture compared to the Teddy guinea pig, though both are short-haired rex-type breeds. Rex guinea pigs are generally docile, sociable, and easy to handle, making them suitable for families and owners of varying experience levels. Coat maintenance is relatively low-effort compared to long-haired breeds, though regular nail trimming is important as nails tend to grow quickly. Diet consists of unlimited timothy hay, appropriate pellets, and daily vitamin C supplementation. Common health concerns include scurvy, urolithiasis, and respiratory infections. Lifespan is 4–7 years.
Origin
Andes region of South America
Lifespan
5-7 years
Size
20-30cm / 800-1300g
Temperature
18〜26℃
Humidity
40〜60%
Timothy hay (staple), pellets, vitamin C-rich vegetables
Short curly coat, relatively easy care. Slightly coarser than Teddy
Calm and friendly. Relatively tolerant of being held
Sturdy, muscular build. Robust and healthy breed
Watch for bumblefoot. Use soft bedding material
Beginner. This is a beginner-friendly species. No special equipment or experience is required, and it can be kept successfully with basic care setup.
The ideal temperature for Rex Guinea Pig is 18〜26℃. Recommended humidity is 40〜60%. Avoid sudden temperature changes and maintain a stable environment.
The average lifespan of Rex Guinea Pig is 5-7 years. With proper care and nutrition, they can live a long and healthy life.
Rex Guinea Pig typically reaches 20-30cm / 800-1300g as an adult. Size may vary depending on care conditions and individual genetics.
Rex Guinea Pig feeds on: Timothy hay (staple), pellets, vitamin C-rich vegetables. Aim for a balanced diet with appropriate feeding frequency.
The price of Rex Guinea Pig varies significantly depending on morph, size, and lineage. Check our market price page for the latest pricing information.
Find listings for this species
Browse Small Animal ListingsGuinea Pig Multi-Pet Guide — Compatibility, Cage Size & Introduction Methods
Guide to keeping multiple guinea pigs: compatible pairings, cage space requirements, step-by-step introductions, and conflict prevention.
Guinea Pig Beginner's Guide — Personality, Diet & Group Keeping
Beginner's guide to guinea pig care: vitamin C needs, hay and pellet balance, group compatibility, and understanding their vocalizations.
Hamster vs Guinea Pig: Difficulty, Cost & Feature Comparison
Hamster vs guinea pig: size, lifespan, personality, space, and cost comparison.
Complete Beginner's Guide to Small Pet Keeping
Everything beginners need to start keeping small pets: species comparison, cage and bedding selection, feeding, temperature management, and preparation checklist.