well make sure you go to a good pet store,mice should be around $5 maybe 6 the girls are less smelly than the boys so i would recommend them the most. the pet store people should beable to sell you some mouse mix-but the mice eat - APPLE -CHEESE -WHEAT SEEDS -PEAR -PUMPKIN SEEDS AND PELLETS but with the pellets make sure that the pelets have been chopped in half first othe wise the mice will choke they drink water and v.rarely cream/milk.make sure daily that you check there bums incase there is poo spreading around there.