Why small pets make good pets

Small pets are often chosen for their size, perceived manageability, and suitability for indoor living. However, their small stature should never be mistaken for simple needs. When properly understood and cared for, small companion animals can be easily trained, are engaging, and deeply rewarding companions.

At COAPE International, we emphasise that good pet guardianship begins with understanding species-specific behaviour and welfare requirements. Small pets—including rabbits, guinea pigs, hamsters, rats, gerbils, mice, and even some reptiles—have complex physical and psychological needs that must be respected to ensure wellbeing.

Why small pets make good companions

Small pets can make excellent companions for individuals and families when matched appropriately to lifestyle and commitment levels.

They are often:

• Suitable for smaller living spaces
• Lower in daily exercise demands compared to dogs
• Quiet and less disruptive in shared housing
• Fascinating to observe and interact with
• Capable of forming strong bonds with caregivers

Many small mammals demonstrate advanced cognitive abilities. Rats, for example, can learn complex tasks, respond to their names, and show clear social preferences. Rabbits and guinea pigs develop strong affiliative relationships with both humans and conspecifics.

However, the key to success lies in understanding that small does not mean low maintenance.

Enrichment for all types of small pets

Environmental enrichment is essential for preventing stress, stereotypic behaviours, and health issues. Small pets are prey species in the wild, and their behavioural biology reflects this.

1. Physical enrichment

All small pets require opportunities to express natural behaviours:

• Foraging – Scatter feeding, hay racks, puzzle feeders
• Digging and burrowing – Deep substrate for hamsters and gerbils
• Climbing – Multi-level enclosures for rats and mice
• Gnawing – Safe chew materials for rabbits and rodents
• Hiding – Multiple hideouts to reduce stress

Lack of enrichment may lead to bar chewing, over-grooming, aggression, or learned helplessness.

2. Social enrichment

Many small pets are highly social:

• Guinea pigs require companionship of their own species.
• Rats thrive in same-sex groups.
• Gerbils are colony animals.

Isolation can cause chronic stress and abnormal behaviours. Conversely, some species (such as Syrian hamsters) are solitary and must be housed alone to prevent serious aggression.

Understanding species-specific social structures is critical.

3. Cognitive enrichment

Small mammals benefit from mental stimulation:

• Clicker training for rats and rabbits
• Obstacle courses
• Novel objects rotated weekly
• Scent trails
• Safe exploration outside the enclosure

Cognitive engagement improves confidence and reduces fear responses.

Cage parameters for different small pets

One of the most common welfare concerns for small pets is inadequate enclosure size. Commercial cages are frequently marketed as “suitable” despite being too small to meet behavioural needs.

Below are general minimum guidelines (larger is always better):

Rabbits

Rabbits require space to:

• Fully stretch upright
• Hop at least three consecutive hops
• Lie flat comfortably

Minimum recommended continuous space:
At least 3m x 2m of permanent floor space, with 24-hour access to exercise space.

Wire-bottom cages are inappropriate. Solid flooring with deep litter areas is essential.

Guinea pigs

Guinea pigs need large horizontal space rather than vertical height.

Minimum for two guinea pigs:
At least 120cm x 60cm (0.7m²), though 1.2–1.5m² is strongly recommended.

They require:

• Constant access to hay
• Multiple hideouts
• Stable temperature conditions

Rats

Rats require vertical space for climbing.

Minimum for two rats:
At least 80cm x 50cm x 80cm height, with multiple platforms.

Bar spacing must be narrow enough to prevent escape.

Syrian hamsters

Often severely under-housed.

Minimum recommended enclosure size:
100cm x 50cm continuous floor space, with at least 20–30cm deep bedding for burrowing.

Exercise wheels must be appropriately sized (minimum 28–30cm diameter for Syrians).

Dwarf hamsters

Minimum floor space:
80cm x 50cm, with deep substrate.

Gerbils

Require:

• Deep sand-based substrate (20cm+)
• Large tanks or converted enclosures

Minimum:
100cm x 40cm for a pair, with deep digging capacity.

Specific needs of certain small pets

Each species has unique physiological and behavioural requirements.

Rabbits

• Require high-fibre hay-based diet (80% of intake).
• Cannot tolerate prolonged isolation.
• Need regular dental monitoring due to continuously growing teeth.
• Are prone to gastrointestinal stasis under stress.

They are crepuscular and require safe hiding areas.

Guinea pigs

• Cannot synthesise Vitamin C and require supplementation.
• Highly sensitive to respiratory infections.
• Must live with at least one companion.

They communicate extensively through vocalisation.

Rats

• Extremely clever and trainable.
• Prone to respiratory disease.
• Require regular enrichment rotation.

They form strong bonds and benefit from daily interaction.

Hamsters

• Nocturnal and easily stressed by daytime disturbance.
• Solitary (especially Syrian hamsters).
• Require deep bedding for tunnelling.

Improper housing is one of the leading causes of behavioural stress in hamsters.

Gerbils

• Need sand baths for coat health.
• Require stable social groupings.
• Engage heavily in digging behaviours.

Lack of substrate leads to frustration behaviours.

Matching the right small pet to the right household

Not all small pets are ideal for young children. Many are fragile prey species and can become easily stressed with excessive handling.

Considerations before choosing a small pet:

• Noise sensitivity
• Lifespan expectations (rats 2–3 years; rabbits 8–12 years)
• Veterinary access
• Financial commitment
• Social housing needs

Responsible selection improves welfare outcomes and reduces surrender risk.

Small pets make excellent companions when their complex needs are properly understood and met. They offer companionship, fascinating behaviour, and opportunities for responsible animal stewardship.

However, ethical guardianship requires:

• Adequate space
• Appropriate social housing
• Species-specific enrichment
• Correct nutrition
• Veterinary access

At COAPE International, we advocate for education-led ownership, ensuring that guardians choose animals whose needs they can meet throughout the animal’s lifetime.

Small pets are not starter pets—they are specialised companions deserving of informed, compassionate care.