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Mice thrive on pelleted food (obtainable from pet shops) as a staple ration, with some raw vegetables and fruit, such as carrot, swede, celery and apple for variety. Fresh hay and water are also necessary daily requirements. The water should be given ad lib from drinking bottles which the mice will quickly learn to drink from. A mouse will normally drink 3 - 7 ml per day.
A little canary or parrot seed, wheat, oats, rolled oats or stale wholemeal bread, also pleases them. They sometimes enjoy a little grass and a small dish of milk.
Empty, wash and refill the food and water dishes daily as they can easily become contaminated. Mouse food is best fed in heavy duty pottery or gnaw-proof containers or by using food hoppers.
Remember to provide your mice with a piece of hardwood to gnaw upon, thus preventing their continually growing teeth from becoming too long