For a long time, mice have been affectionately called "low-maintenance puppies" because of their intelligence and loyalty. While there are hardly any pets that don't require attention, mice are surprisingly easy to care for and much more engaging than fish or hamsters. A mouse, adaptable and cheerful, makes for a sweet, curious, intelligent companion who always interacts with its owner. This fascinating creature is a dream pet for many, and if you're considering adopting one, the first thing you should do is prepare a clean, comfortable home. Regardless of a pet's size, proper care is essential.
Steps
Deciding to Adopt a Mouse

- Think about the time you'll need, not just for basic care. This includes keeping their cage clean, feeding them regularly, and taking them to the vet if they're sick.
- Make plans for someone to look after your mice when you're away. It can be challenging to find someone who feels comfortable caring for them (many people are overly cautious), so it's a good idea to have 3 or 4 potential caretakers in mind. Some pet stores also offer pet-sitting services.

- Cats are a particular concern. They enjoy hunting rodents, including mice. So, you might unintentionally put your mice in danger by tempting your cat.

- Mice kept in clean environments usually don't smell much, but they have a unique body odor that not everyone may find pleasant. Before adopting, ensure you're not allergic, or alternatively, find a good bedding material that absorbs odor. Remember that toxic chemicals and pine wood shavings are harmful to mice—pine resin can damage their lungs.
- Similarly, some people might be put off by the fidgety behavior of mice. Their tiny claws can be ticklish! Also, in the beginning, their tails might seem strange to you. Take the time to bond with your mouse to become familiar with its habits and body.
- Prepare a spacious, well-ventilated, and safe cage. A wire mesh cage is preferable to a glass one because it allows better air circulation. Be cautious with glass cages, as they can lead to respiratory infections and even death. Ensure the cage floor doesn't have sharp wires, as they could cause foot injuries. For wire cages, the spacing between bars should be between 1.5 to 7.5 cm.

- Consider your financial ability to pay for surgery if your mouse develops a tumor that needs removal. If the answer is no, be prepared to make the difficult decision to humanely end your mouse's life while it's still young, to avoid future pain. If you're not comfortable with this, then mice may not be the right pet for you. The most important thing here is the responsibility of the owner.

- A single mouse will often seek constant interaction to avoid loneliness. Therefore, it’s best to get two or more. Even if you spend a lot of time with them, they'll still feel lonely, so get another one if possible. Your mouse will appreciate it.
- A better option is to adopt multiple mice so they can keep each other company. If you go this route, it’s a good idea to buy them from the same place at the same time to minimize issues with quarantine or socializing. Introducing mice to each other can be difficult, especially with unneutered male mice, who are territorial.
- Don’t be intimidated by the thought that keeping two mice will be more work than one. In reality, you'll find it easier to care for two or three mice since they’ll be happier with each other. The difference in food and bedding requirements is minimal. The biggest challenge might be trying to hold all of them when you go for a walk!
- Likewise, if you're keeping multiple mice, it's best to choose the same gender, otherwise, you might inadvertently create a breeding situation. If you're not into breeding or fully understand what you're doing, it's better not to breed your mice.
- Some veterinarians will neuter mice. If you accidentally end up with a male and a female, ask the vet to neuter the male. However, remember that neutering can be dangerous for mice due to anesthesia risks.

- Before choosing a mouse, make sure to research the breeder or rescue organization to ensure they take good care of the animals and maintain healthy conditions.
- Mice found in pet stores are often sourced from mass breeding facilities and may not receive proper attention. If you choose to buy from a store, avoid mice showing symptoms such as red discharge around the eyes and nose, wheezing, open wounds, lethargy, cloudy eyes, or diarrhea.
- Male and female mice are often housed together in pet stores, which can lead to unexpected breeding. If you only want one or two mice, be cautious, as you may quickly end up with more than you planned. Make sure to check the gender when purchasing. If you decide to stop keeping them, that's okay!
Set Up the Mouse's Home

- Each mouse should have at least 60 square cm of space, but 75 square cm or more is preferable.
- The gap between the wires should not exceed 1.9 cm for adult mice and 1.25 cm for baby mice. If the gaps are wider, consider adding mesh to narrow the spacing. The wire bars should be coated to protect them from urine corrosion. Mice are excellent climbers, so make sure the cage is secure enough to prevent them from escaping.
- Another option is a perspex cage, such as the Rotastak. These cages usually have a colored base that provides a sense of security for the mice and transparent walls for easy viewing. The modular design allows you to create a fun, customizable space for your mice. Cleaning is simpler than with wire cages due to the smooth surface of the plastic.

- A pet water bottle is ideal because it keeps the water clean and securely attached to the cage, preventing spills. Opt for a glass bottle since mice won't be able to chew through it.

- Use wood shavings for bedding in store-bought cages, but avoid pine or cedar shavings as they can release toxic fumes when mixed with urine. These materials are also dirty and contain oils that can irritate the respiratory system, so it's best to stay away from them. Wool or soft towels are good alternatives, especially for covering metal wire floors. However, they should be cleaned once or twice a week depending on how many mice you have. Shredded paper bedding is another option, though it’s expensive and may have a smell. Newspaper works well, but the ink can stain light-colored mice. Hay can get dirty quickly and give off an unpleasant odor when combined with urine.
- Another option is Carefresh, a bedding made from cellulose available at pet stores, or recycled paper bedding like Yesterday's News. Avoid using homemade paper, as the ink can harm your mice.

- You can purchase a simple plastic cage from a pet store or get a wicker ball with holes. These items mimic what mice would naturally seek in their wild environment.

- Mice litter boxes are small plastic containers with holes or corner-cut plastic boxes. For bedding material, you can use pine wood shavings, newspaper, or Carefresh (approximately 2.5 cm thick) under the mouse’s bathroom floor.
- Place the litter box in the corner opposite their nest and eating area. Most mice will quickly understand the purpose of the box and appreciate having a clean area. For the best results, observe if the mouse naturally chooses a corner for this purpose before placing the box, but some mice may not be as organized, so placing the box directly can still be effective.
- Setting up a bathroom area for your mice also makes cage cleaning easier. You can clean the litter box every few days, spray it with a pet-safe disinfectant (vinegar also works), and refill the bedding material.

- Mice love to have things to do, and they will engage with these toys when you’re not around.
- Toilet paper rolls, cat toys, ping pong balls, hammocks... mice enjoy all of these, along with any other small objects you can add for their amusement. Look around your home for small items and make the cage into a real home (be sure the items are not small enough to be ingested or cause choking hazards).
- Avoid string-like or chain toys, as they could lead to choking. Be mindful when selecting toys and ensure that nothing in the cage could pose a danger to your pets.
Maintain the Health of Your Mice

- If using a pet water bottle, make sure to replace the water daily and disinfect the nozzle at least twice a week.
- Provide your mouse with 12 ml of rodent-specific mixed food daily. This food is highly nutritious and combines grains in a way that prevents the mice from picking out the tastiest but least nutritious pieces (which would otherwise leave the less desirable portions behind).
- Offer fresh food like fruits and vegetables as part of their balanced diet. Mice share similar nutritional needs with humans and can eat almost anything. Make a list of foods that they shouldn’t eat, and anything not on the list is safe for them. Mice can even enjoy chocolate! Giving them a small piece of fruit or a little leftover meal once or twice a day will keep them happy and healthy.
- Mice also love sweets and cheese, but sugary treats can lead to tooth decay, and fatty foods can cause weight gain and sluggishness, so it’s best to limit these.

- For spot cleaning, consider purchasing a small plastic or metal scoop, similar to those used for cleaning cat litter. Use it to scoop up dirty bedding, then dispose of it by sealing it in a plastic bag. Get rid of any damp, soiled, or smelly wood shavings.
- Clean the cage thoroughly at least once a week. Place your mouse in a separate box or a safe area away from cleaning tools. Remove all items from the cage and discard the old bedding. Wash everything using a mixture of vinegar and soap, scrubbing from top to bottom, and then dry it. It's a good idea to have separate sponges, buckets, and towels designated just for cleaning the cage.
- Use disposable cloths to wipe down the surfaces of the cage, then scrub and dry it. Once cleaned, you can add fresh bedding and replace any necessary items.
- Avoid harsh chemicals like bleach, which can harm your mouse’s sensitive respiratory system if inhaled. Instead, use pet-friendly disinfectants like Nil-Odor, or look for any safe disinfectants at your local pet store or veterinary clinic.

- On particularly hot days, provide your mouse with cool, shallow water (about 1.5 cm deep) to play in. During colder weather, add extra bedding so your mouse can burrow and stay warm.

- Inspect your mouse weekly for any signs of skin tumors or injuries.
- Pay attention to their skin to ensure there are no red rashes or excessive scratching.
- Mice may contract parasites from bedding, so watch for signs of skin irritation or fungal patches.

- It’s wise to plan ahead and find a vet who specializes in small rodents before adopting a mouse, or at least while your mouse is still healthy.
- Ask pet store owners or fellow mouse owners for recommendations. You can also ask for suggestions on online pet forums where people often share their positive (or negative) experiences with small pet healthcare.
- Contact your chosen veterinary clinic to ask if they have experience with mice.
- You can also inquire whether the vet owns any small rodents, as firsthand experience with these animals can help them understand the concerns of pet owners more effectively.
Keep Your Mouse Happy


- Care for your mouse daily, ideally 2-3 times a day for at least ten minutes or more.
- Mice love to explore and solve problems, so consider setting up little obstacle courses to mentally stimulate and train your mouse.

- Mice are quite intelligent and can learn a variety of tricks, such as jumping through a hoop, spinning in a circle, standing up, and even shaking paws, all in response to your commands.
- Don’t punish them for mistakes. Mice don’t understand negative punishment, and it will only confuse them. Instead, reward them when they get it right.
- If your mouse bites, don’t hit them or say “No.” Instead, try squealing like a mouse and gently pull them away. Eventually, they will understand.
- Remember that every mouse has its own personality, which means their learning style may vary. What works for one mouse may not work for another.
- Patience and frequent, short training sessions with lots of rewards are key to successful training.

- When taking your mouse outside, a leash will help you keep control in case they become frightened.
- Join mouse forums and other helpful mouse websites to discover more valuable information!
