9 min read

How to Take Care of a Guinea Pig: Complete Beginner Guide

Everything a new owner needs: housing, daily feeding, handling, cleaning routines, health checks, and the mistakes that cause most problems.

Start with the five things that matter most

  • Company: guinea pigs are herd animals and should live in pairs or small groups of the same sex, or neutered mixed pairs.
  • Space: far more floor area than pet shop cages provide, with a solid floor and no wire levels.
  • Unlimited grass hay: the foundation of both digestion and dental health.
  • Daily vitamin C from fresh vegetables and fresh fortified pellets.
  • Daily observation: eating, drinking, droppings, and behaviour tell you about health before symptoms appear.

A realistic daily routine

Weekly weighing is the single most useful habit in guinea pig care. A loss of 50 grams or more in a week is an early warning worth a veterinary call, often well before you can see anything wrong.

  • Morning: refill hay, change water, serve fresh vegetables, scoop soiled bedding.
  • Midday: a quick look at posture, breathing, and droppings.
  • Evening: second smaller vegetable portion, top up hay, floor time or handling.
  • Weekly: full bedding change, wash bowls and hides, weigh each guinea pig.

Feeding in plain numbers

Unlimited timothy or meadow hay should be available at all times and makes up roughly 80 percent of the diet. Add about one cup of fresh vegetables per guinea pig per day, weighted toward leafy greens and bell pepper. Pellets are a supplement, not a meal: an eighth of a cup per day for an adult is enough.

Fruit is a treat, a couple of small pieces a week at most. Never feed grass clippings from a mower, dairy, meat, seeds, nuts, or anything from the onion family.

Handling and building trust

Give a new guinea pig a few quiet days to settle before handling. Approach at floor level, speak softly, and scoop with one hand under the chest and one supporting the hindquarters. Always support the back end; guinea pigs panic when their legs dangle.

Hand feeding a piece of pepper every day builds trust faster than anything else. Most guinea pigs learn to wheek at the sound of the fridge within a couple of weeks.

Cleaning without stressing your pigs

Spot clean wet corners daily and do a full change once a week for most setups. Ammonia from stale urine irritates the respiratory tract and is a common trigger for the sneezing and eye discharge new owners notice.

Use unscented cleaners or a dilute white vinegar solution, rinse well, and let everything dry. Avoid scented sprays and never use pine or cedar shavings.

When to call an exotic veterinarian

Find an exotic vet with guinea pig experience before you need one. Many general practices see few of them, and small mammals deteriorate quickly.

  • Not eating or not passing droppings for more than a few hours
  • Laboured, noisy, or open-mouthed breathing
  • Hunched posture, grinding teeth, or unwillingness to move
  • Bleeding, a visible wound, or a limb held oddly
  • Rapid weight loss, crusty eyes, or a swollen abdomen

Sources

The complete guinea pig care companion

Wheeky: Guinea Pig Guide

  • Searchable database of 2,000+ foods
  • Cage setup and first 7 days checklists
  • Emergency steps and vitamin C tracking

Free to download on iPhone and iPad. Works offline once installed.

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