Rex Guinea Pigs or cavies as they are known is the species of the rodent family and quite popular pet in the western society since it was introduced in Europe and North America.

Rex the part of the rodent family is the biggest of all the breeds of guinea pigs on this planet. They look quite like Teddy Guinea pigs and are extremely popular pets in the households with young children.


These little cute cavy breeds has a dense wavy coat and appears like a hedgehog makes for the popular pet.

They come in all kinds of colours be it gorgeous hues of red or crème, white, chocolate and gold. The average size of the fully grown rex is roughly whopping 18” which is 1.5 times larger than the run-of-the-mill guinea pigs.

The special feature of this cavy is its curly fur which is coarse and harsh to feel but elastic and bouncy whereas its coat is wavy on the belly.

Rex has cute curly whiskers. Overall, this little cavy looks like a round ball of dense short wool.


Rex has a curly coat it is easier to clean with a soft brush or with the help of the rounded scissors when short hairs get tangled, or matts are formed.

Rex possesses thick claws, and they grow amazingly fast than normal hence you can use special clippers available from the pet store to cut them. though they are of extremely low maintenance.

Still they need to be taken care of their grooming regularly.


Like we humans even rex health needs to be maintained and hence regular check-ups with the local vet is recommended to ensure their health is on the track. The common health problems they face are:

  • Nasal/eye discharge
  • Wheezing
  • Overgrown teeth
  • Any skin problems
  • Coughing or open mouth breathing
  • Changes in food consumption


These cute balls of fluff with short coarse hair, and long droopy ears are known for gentle, friendly, and calm temperament.

They love being handled with care and receiving pats. Being extremely gentle they make an excellent pet for the children.

Since they tend to be of the larger size of the breed, they are more relaxed and at ease with their environment.


The diet for this cute little cavy must be of mixed kind with various healthy and low-fat food.

Rex cannot produce Vitamin C themselves they must be provided with fruits and vegetables which are the source of it. Their diet must include following things:

  • Fresh vegetables
  • Red capsicum
  • Coriander
  • Kale
  • Fresh water
  • Good quality pellets
  • Grass hays

Avoid giving high carbohydrate or sugary foods as they may cause the bacteria.

Ensure the protein content in the pellets is never more than the fibre content. Grass hay is equally important part of the diet of Rex and make sure it is not chemically treated and safe to consume.

Rex must be provided with extra water on the hot days whereas they may not drink water at all on the cold days as they get enough water from fresh vegetable and fruits.