Guinea pigs need compatible guinea pig company, generous ground-level space and a diet built around feeding hay. Plan for the whole group before acquiring any animals.

Compatible companions

Choose a bonded compatible pair or group. Possible combinations include females, compatible males, or a neutered male with females. Check sex and breeding prevention with a competent rescue or vet; neutering a male does not automatically stop fighting. Provide enough hides, food and water access for everyone. Rabbits are not suitable substitute companions.

A sheltered home and exercise space

PDSA describes a sheltered living area of at least 1.5 × 1 m with an attached exercise area of at least 2 × 1 m and constant access between them. These are separate parts of its recommended setup, not a 1.5 m² total allowance. More animals need more space.

Indoor or outdoor accommodation must stay secure, dry and at a comfortable temperature. Avoid overheating, wet ground and draughts. Use comfortable, low-dust flooring and several shelters or tunnels so guinea pigs can explore and retreat.

Hay, fresh food and vitamin C

Keep good-quality feeding hay available at all times, with suitable fresh grass where available. Add a measured ration of guinea-pig-specific pellets and varied suitable vegetables, including vitamin-C-rich choices. Guinea pigs cannot make their own vitamin C. A balanced diet may meet their needs; ask your vet about supplementation if intake or health is uncertain. Do not add routine vitamin drops to drinking water or substitute rabbit food.

Daily care and warning signs

Refresh water, remove spoiled food and wet bedding, and check every animal is eating normally. Weigh regularly so changes are easier to notice. Eating less, stopping eating or significant weight loss needs veterinary advice promptly. Do not wait for a home remedy to work.

Sources checked

Guide copy checked on 2026-11-08. This is a source-based editorial review, not independent veterinary review.