Pet Mice Guide

Pet mice make great pets for children as well as adults. However, owning one or more of these little rodents comes with responsibilities much like any pet. Being well prepared and informed will make having pet mice a lot more enjoyable and easier.

This site is designed to provide a complete guide to help you choose and purchase your Pet Mice, buy all the necessary items you need, and help you care for them. As with most domestic animals that have been bred for some time, there is a wide range of types and colors to choose from.

A term for the domestic pet mouse bred for showing is ‘fancy mouse’, or in plural ‘fancy mice‘(click link to see the Wikipedia page on Fancy Mice). These are the mice that have been selected and bred more carefully. Often to carry on specific coloring or characteristic’s and are usually slightly larger than your typical pet mouse. There are different sections of this page you can jump to;

White and brown pet miceWhy people choose to own pet mice

Whether you are an experienced pet owner, or looking to have your first pet, taking in mice may well be for you. They are very active and inquisitive pets. Mice love digging and playing within their houses. They will take treats from you, sit in the palm of your hand and run up and down your arms. Brown pet mouseYou can form bonds over time, mice will become more familiar with their owners the more they are handled.

Each mouse develops their own character and you will notice the difference in their personalities if you own more than one. Mice are low maintenance and easy to keep. Their living space should be cleaned out every week or so, putting in new bedding. Depending on the size of the food bowls and drinking bottle, fresh food and water once a day will usually do.

You will find some interesting facts in this post here. There will no doubt be somethings you didn’t know, and you may even be surprised by some! I have also put together some pros and cons to owning pet mice.

What is a Mouse?

A Mouse by definition is a small rodent, with a long thin tail. In the wild they rummage for food scraps and burrow fairly shallow into loose ground. There are several different types of mouse around the world and it is not uncommon to find them as pets. Historically mouse-like species are among the oldest known mammals on record.

Where to buy Mice?

There are two main options when looking to buy mice. The pet store, or the breeder. A pet store may be more convenient for you, but they will not be specialists in mice. There is always a risk that the mice you buy may not be the sex the store thought, or the exact age. Using a breeder you will generally get pets from someone who cares. They have bred these pets themselves and will likely know the exact age, the lineage and be aware of any health problems that might exist.

Breeds and Colors

Outside of the domestic pet mice that are readily available, there are several other types of species of mice. Here are some of the more well known that you may have heard of:

  • House Mouse
  • Field Mouse
  • Wood Mouse
  • Deer Mouse
  • Harvest Mouse
  • Dormouse

Obviously these other breeds are rarely kept as pets so we will not go into too much information regarding their differences to your common pet mouse.

You also have a wide variety of colors when it comes to pet mice. Not only pure colors but patchy, or mixed colors. So the options are almost limitless, here are some of the more popular colors that you are likely to find:

  • Black
  • Brown
  • Grey
  • White
  • Albino (White with Red eyes)
  • Yellow
  • Creme

Preparing for your pet mice

Once you are sure you will be buying some fancy mice you need to be well prepared. Let’s face it, there is no point bringing them home and having nowhere for them to live, is there ?

Have a Home Ready for Your Mice

Before picking up your new pet(s) you will need a home for them. Although its normal to automatically assume mice need a cage, the type of cage with metal bars is not ideal. A house with a plastic top, plenty of air ventilation, some obstacles to have fun with and an exercise wheel is perfect. (see picture)Mice Cage For a complete guide to mice homes/cages please click over to my housing guide here.

You need to use some common sense when deciding how many mice to house together. The house in the picture is adequate for 2-3 mice. Of course, make sure you have space available for their home. Away from direct sunlight, drafts, and any unpleasant conditions you wouldn’t like to live near.

There are plenty of options on the market. Two-tier cages are great for mice to exercise and explore. Glass tanks give you great visibility and hours of entertainment watching them play and dig. Or there are fun complex builds, and good all round affordable cages.

Have Plenty of Bedding

You will always need plenty of spare bedding to hand. No need to go super fancy, the product on the left will do just fine. If its designed for small rodents then it will be free from chemicals that might be harmful.

Try and put around a 3cm deep layer of bedding in the cage. Mice love to dig, burrow and play in thick bedding. They will often sleep, move items and make areas within the bedding. Shredded paper will also work as a welcome addition and give the mice something else to work with. Plenty of products are reviewed in the accessories section.

I have also put together some handy information on the different types of bedding available. Which are suitable for mice, and which are not. As well as some information on what mice are allergic to. Please read through this before deciding on the bedding you are going to be using.

Fresh Water and Food Supplies

Mice food Choosing food suitable for you mice is very important. I review some of the best packaged foods available in this feeding post. Depending on the size of the food bowl you will need to top up food at least once a day. I like to have a spare box of food in the cupboard to make sure I never run out completely.

Its also fun to buy or make some treats and give these to your mice on occasion. Passing them treats by hand will help build a better relationship between you and the mice.

I go into a lot more detail here regarding the food they will eat. You need to find a good balance of different foods that your individual pets enjoy, along with making sure they are getting enough nutritional goodness.

Mice water bottleFresh water on tap is the next necessity. You can either use a bowl or a water bottle. The problem I find with bowls, the mice usually manage to throw bits of food and bedding in with the water. The plus side to bottles are that they make less mess, but only one mice can use the bottle at one time.

If the cage you bought does not come equipped with a water bottle remember to make sure you can attach one before you buy. See water bottles and more reviewed in the accessories page.

Choosing healthy pet mice

When it comes to choosing your new pets I know how tempting it can be to pick the first cute mouse you see. However, you will benefit in the long run from taking some time to pick a healthy mouse that is ready to leave its litter/parents. Here are some questions you should be able to answer:,

How Old Is the Mouse?

You should not remove a baby mouse from its mother and litter mates before it is at least 6 weeks old. Removing them earlier than this can cause them distress and possible health problems due to being away from their mothers milk. Additionally, you increase the chance of the mouse being harder to socialize and develop all its natural skills.

What Is Their Gender?

Unless you want to wake up one morning and find litters of baby mice be sure not to mix males and females. In my experience males are easier to find as females are kept for breeding at shops.

Is the Mouse Healthy?

Make sure the prospective mouse has no visible damage, their tails, ears and legs should be clean with no marks on. Their fur/coats should be clean and shiny, showing they are comfortable and well groomed. Look and listen for signs of any laboured or noisy breathing. Viral disease spreads quickly among mice if present.

Looking after your new pet mice

Pet Mice eating and drinkingIn general mice are not difficult pets to keep and enjoy. By now you should have the largest tank you were able to afford. There should be food, water, bedding, housing and any accessories you chose.

Introduce your mice to their new homes and watch them make it their own. They will move bedding around where they want it. Depending on their nature they may choose a location for themselves where they are comfortable. Or, they might huddle together and share body warmth.


Handling a pet mouse is a very important part of socializing and taming them. Generally speaking, the more you handle a mouse the more comfortable with human interaction they will be. As discussed earlier, each mouse has its own temperament, so different mice will take a different amount of time to become familiar with you, or other people looking to handle them.

Picking up a Mouse

There are a few points worth mentioning when it comes to picking up your little rodents. The most important thing here is that you never damage or hurt your mice. Remember, a mouse is a small animal, and often not motionless while being picked up so care is important. Handling a pet mouseYou can pick up a mouse by the base of its tail briefly to help you get a grip of it.

Make sure you hold at the base of the tail to minimize pain, and do not hold it like this for long. To help with the process of taming mice, if you are sitting on the sofa and watching TV, place a mouse in a small box near you or on your lap. Then stroke or handle the mouse several times during the evening.

Once your mouse is comfortable with being handled when you approach it will not run away, and in time even approach you and run up your arm.

Health Problems

Mice are susceptible to a number of health problems. There are a number of things you can do to minimize the risk by taking good care of your pets. However, should any of you pets take a turn for the worst never hesitate to consult a vet that specializes in mice/rodent care. Some of the health issues owners come across and you’ll likely be able to recognize are as follows:

  • Lice/Fleas
  • Mousepox
  • Respiratory problems
  • Diarrhea
  • Tumors


Sometimes you will see fighting within a pack of mice. This is a lot more common when housing males together. I have experienced this first hand, where a mouse is aggressive towards other mice. He will bite their tails and into their backs causing a screeching noise and the panicked mouse to flee.

Unfortunately this situation rarely improves on its own, some mice are just not able to live peacefully with others. You have no other option but to separate the mouse that is being aggressive. It is better you do this sooner rather than later to restore harmony within your mice, and make sure do long lasting damage is done to the health of your mice.

Cleaning Out the Cage

Mouse hiding in houseIf you are providing a nice home for your mice to live in, the least you can do is keep it clean for them. Typically, depending on how many mice, and what size cage they have, you will need to clean them out once a week.

To do this, you will need to take out your mice and place them in a safe place. Somewhere they cannot escape or injure themselves. Then you will need to;

  • Remove any toys or obstacles in the cage
  • Tip out all the bedding
  • Give the cage/tank a wipe with warm water and a little washing up liquid if needed
  • Wipe the tank down with water to remove any chemical residue
  • Put in all new bedding, about 3 cm deep will do
  • Place all toys and obstacles back in, cleaned up if necessary
  • Clean out food bowl and water bottle, replenish and place back in
  • Place you mice back into their newly cleaned home and watch them enjoy

If you want something a little crazy check out mouse clothes.
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