Environment

A safe and comfortable home

How big should a cage for mice be?

You should get as large a cage as possible for your mice so they can get plenty of exercise. It should have different levels so that the mice have opportunities to climb.

Where should I put the cage?

The cage should be indoors, out of draughts and direct sunlight. It should be away from busy or noisy areas, such as near a TV or music system, as noises and vibrations are stressful for the animals. The temperature should stay steady between 18° and 22°C. Take care to protect mice from predators, such as the family cat.

The cage should be well secured so that the mice can’t escape.

What type of material should I use on the floor of the mouse cage?

The cage floor should be covered with a suitable material such as non-toxic woodchips, shavings or sawdust. Some mice are prone to respiratory disease (disease of the lungs and airways), so these animals should be provided with commercial “dust free” mouse bedding (e.g. wood pulp or paper-based materials, available from pet shops). Cedar or pine woodchips should not be used as they are toxic. Signs of respiratory disease can include a discharge from the eyes or nose, snuffling, wheezing and difficulty breathing, as well as less specific signs such as becoming inactive, going off their food or poor coat condition. If you notice any of these signs, contact your local vet and visit our Mouse Health page.

Do my mice need a nest box?

Yes. Mice need a quiet and secluded nest box where they will sleep during the day.

What type of nesting material should I give my mice?

Shredded paper (e.g. clean white kitchen roll), or cloth-based materials, should be provided as nesting material. Avoid newspaper because the ink can be toxic. Cotton wool shouldn’t be used because it can cause dangerous blockages if eaten and can become wrapped around legs, causing constrictions.

How often do I need to clean the cage out?

The cage should be thoroughly cleaned once a week. It is recommended to leave a small amount of their old bedding (unsoiled) behind at each cleaning so that their familiar scents aren’t completely removed during cleaning.