Pet mice are small, curious, and full of personality. Often overlooked or misunderstood, mice can make fascinating pets when their needs are properly understood. They may be tiny, but they are busy, intelligent little animals with very specific care requirements.
This guide explains what pet mice are really like, how to care for them responsibly, and who they’re best suited for.
What Are Pet Mice Like?
Pet mice are:
Curious and active
Intelligent and observant
Nocturnal or crepuscular (most active at night)
Naturally cautious
They enjoy exploring, nesting, climbing, and foraging. While not all mice enjoy handling, many become confident with gentle, patient interaction.
Social Needs – Who Can Live Together?
Understanding mouse social structure is essential.
Female mice thrive in same-sex groups
Male mice must live alone (they will fight if housed together)
Never mix males and females unless breeding is intentional
Female groups provide companionship and enrichment, while single males rely more heavily on human interaction.
Housing – More Space Than You Think
Mice need secure, well ventilated housing.
A good mouse enclosure should include:
Solid base (no wire floors)
Deep bedding for burrowing
Multiple hides and tunnels
Climbing opportunities
Glass tanks with mesh lids or specialist mouse cages work well.
Temperature & Environment
Mice are comfortable in normal UK indoor temperatures.
Ideal range:
18–24°C
Avoid:
Drafts
Direct sunlight
Damp or humid areas
What Do Pet Mice Eat?
Pet mice are omnivores.
A balanced diet includes:
Quality mouse or rodent nuggets
Small amounts of seeds
Fresh vegetables (in moderation)
Occasional protein (mealworms, egg)
Fresh water must always be available.
Cleaning & Hygiene
Mice are naturally clean but sensitive to ammonia build-up.
Routine care:
Spot clean daily
Full clean weekly
Replace nesting material regularly
Avoid strong-smelling cleaners.
Lifespan & Health
Average lifespan:
1.5–2 years
Common health issues:
Respiratory infections
Tumours (especially in older mice)
Skin issues
Prompt veterinary care makes a big difference.
Are Mice Good Pets?
Pet mice can be wonderful pets for the right person.
They are best suited to:
Older children (with supervision)
Adults who enjoy observing behaviour
People with limited space
They are not ideal for those wanting constant handling.
🐾 Final Thoughts
Pet mice may be small, but they are complex, intelligent animals who deserve thoughtful care. When provided with enrichment, companionship, and the right environment, they are endlessly interesting little pets.
