Mice need well-ventilated, dry, warm places to live otherwise they can get ill. They are also excellent escape artists and so need to have a secure living environment that is checked regularly.
Mice should be kept out of direct sunlight as they are very sensitive to light, and should also be preferably kept in a quiet area. They need constant access to fresh drinking water and can become quite ill if they cannot drink.
Mice are omnivores and will eat a wide variety of foods, such as seeds, fruit and vegetables. Grapes, raisins, rhubarb and lettuce are all poisonous to mice and should not be fed!! Mice can be mixed with other mice but the living environment should be of a sufficient size to allow them both to forage, dig and exercise. Wild mice can travel hundreds or metres per day. Mice can also breed every 3 weeks so keeping same sex mice is advised!