Guinea pigs are gentle, social, and surprisingly vocal โ but their care requirements are more complex than many new owners expect. They are herd animals that must never be kept alone (it is illegal in Switzerland and strongly discouraged by UK welfare organisations). They require more space than traditional cages provide, have specific Vitamin C requirements, and can develop serious foot problems if housed on inappropriate surfaces.
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| Category | Our Guide |
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| ๐ก Outdoor Hutches | Best Guinea Pig Hutches UK โ |
| ๐ฅฃ Food & Nutrition | Best Guinea Pig Food UK โ |
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Essential Care Overview
Housing
The RSPCA minimum for 2 guinea pigs is 120ร60cm, but welfare-focused organisations recommend at least 10.5 square feet (a 2ร4 C&C grid). C&C cages are the gold standard: modular, expandable, affordable (especially DIY), and feature solid coroplast floors that prevent bumblefoot.
Diet: The 80/10/10 Rule
- 80% unlimited hay (Timothy hay for adults, alfalfa for under-6-months)
- 10% fresh vegetables daily โ bell pepper (highest Vitamin C), romaine lettuce, cucumber, parsley
- 10% pellets โ approximately 1 tablespoon per pig per day
Vitamin C is critical: Guinea pigs (like humans) cannot produce their own Vitamin C. Deficiency causes scurvy โ lethargy, rough coat, swollen joints, bleeding gums. Ensure daily Vitamin C from fresh veg and fortified pellets. See our food guide.
Social Needs
Guinea pigs must be kept in pairs or groups. A lone guinea pig will suffer from stress and depression, even with human interaction. Same-sex pairs (two sows or two neutered boars) are the easiest combination.
For carrier advice, see Best Small Animal Carriers UK.