Pet Wiki

Standard-coat Mouse

Mus musculus

Also called Standard mouse, Smooth-coat mouse, Short-haired fancy mouse

VarietyShort profile

From The original, everyday coat of the fancy mouse, kept since ancient times and shaped into a show variety in Victorian England.1

At a glance the quick version

Length6 to 8 cm21
Lifespan1.5 to 3 years213
Sizetiny
Sleek, glossy, easy-care coat
Comes in a huge range of colours and markings
Lively and entertaining to watch
451

Coat and looks how to spot one

Standard: short, smooth and sleek

The classic fancy mouse coat: short, straight hair lying flat and close to the body, soft to the hand and naturally shiny. A good show coat is thick all over, right down to the belly, the groin, around the front legs and behind the ears. It sits on a slim, long body with large ears, bold eyes and a long tapering tail; show mice measure about 20-23 cm from nose to tail tip.415

Coloursany recognised colour or markingblackbluechocolatefawncreamsilverwhiteagoutitanfoxbandedbroken markedDutchHerefordvariegated54

Personality what they are like

Coat type has no effect on character, so these are typical fancy mice: lively, curious and happiest with mouse company. With calm, gentle handling close to the ground they settle well and seldom nip, and the AFRMA expects every show mouse to be easy to handle.135

Daily activity how busy a day looks

Busy and quick, most active at night and around dusk and dawn. Offer a solid-surface wheel, ropes, branches, tubes and tunnels, and scatter part of the food so they can forage.367

Grooming and care the hands-on bits

The short coat needs no brushing because mice groom themselves. Spot-clean daily, clean the cage fully every one to two weeks and check the water every day.67

Home where they are happiest

A roomy, escape-proof cage with bar gaps under 5 mm, at least 2 cm of dust-free bedding plus paper or hay for nesting, hides with more than one exit, a solid wheel and climbing items. Keep it well ventilated, out of draughts and away from heat.6

Food basics what goes in the bowl

Complete mouse nuggets as the main food, with small portions of vegetables and fruit counted into the daily amount. Scatter some of the ration for foraging and provide fresh water from a bottle, checked daily.7

Company who they like around

Sociable animals that do best in stable, same-sex groups. Females usually live together easily; males are best kept with brothers they grew up with. Avoid swapping members in a settled group.81

The story where it all began

Mice have been kept for their looks for millennia, with the earliest written mention in an ancient Chinese dictionary. The standard coat is the original one, and in 1895 Walter Maxey's National Mouse Club held its first show in Lincoln, England. Most fancy mice shown today still wear this coat.1

Fun facts for the dinner table

  1. 1

    Most fancy mice belong to the Standard coat variety.1

  2. 2

    The AFRMA standard wants the coat thick even in easy-to-miss places such as the groin, around the front legs and behind the ears.4

  3. 3

    The National Mouse Club held its first show in Lincoln, England, in 1895.1

  4. 4

    An ideal show mouse measures about 8-9 inches (20-23 cm) from nose to tail tip.5

Recognised by the official bits

American Fancy Rat and Mouse Association (AFRMA)
Recognised coat variety 'Standard': a smooth, glossy coat, fine to the touch, with a natural high shine and dense cover over the whole body.4
National Mouse Club (UK)
Founded in 1895; most of the colour and marking varieties it shows are standard-coated.1

The care rhythm a typical week and year

A typical home-care rhythm for a Standard-coat Mouse. A starting point, not a vet's advice.

Treats they will love homemade and simple

Hamster and Gerbil Fresh Veggie and Herb Mix

A simple, safe daily supplement that provides essential vitamins, hydration and enrichment for hamsters and gerbils.

You need

  • 1 small piece of carrot (about the size of a pea)
  • 1 small piece of broccoli (about the size of a pea)
  • 1 small piece of cucumber (about the size of a pea)
  • 1 small piece of apple (without seeds, about the size of a pea)
  • 1 small leaf of basil or parsley

How

  1. Wash all fresh ingredients thoroughly.
  2. Cut the carrot, broccoli, cucumber and apple into pieces no larger than a pea.
  3. Tear the herb leaf into tiny pieces.
  4. Mix all ingredients together in a small bowl.
  5. Offer a total of 1.5 to 4.5 teaspoons of this mix per day, depending on the size of your pet.

How much: 1.5 to 4.5 teaspoons per day for hamsters and gerbils

Recipe from Oxbow Animal Health

Rat-Friendly Veggie and Egg Treat

Rats are omnivores and enjoy a varied diet. This treat provides protein and enrichment, and encourages natural foraging behaviour.

You need

  • 1 small slice of carrot (about 1cm thick)
  • 1 small floret of broccoli
  • 1 small slice of cucumber (about 1cm thick)
  • 1 small slice of apple (without seeds, about 1cm thick)
  • 1 small piece of cooked egg (about the size of a pea)

How

  1. Wash all fresh ingredients thoroughly.
  2. Cut carrot, broccoli, cucumber and apple into small pieces (about 1cm cubes).
  3. Cook an egg until hard-boiled, then cool and peel. Take a small piece about the size of a pea.
  4. Mix all ingredients together in a small bowl.
  5. Offer this as part of your rat’s daily food allowance, not in addition to it.

How much: A small amount as part of daily food allowance for rats

Recipe from RSPCA

Small Furries Safe Snack Plate

A selection of safe, low-sugar vegetables and herbs that can be offered as occasional treats to hamsters, gerbils, rats and mice.

You need

  • 1 small piece of carrot (about the size of a pea)
  • 1 small piece of broccoli (about the size of a pea)
  • 1 small piece of cucumber (about the size of a pea)
  • 1 small piece of apple (without seeds, about the size of a pea)
  • 1 small leaf of basil or parsley

How

  1. Wash all fresh ingredients thoroughly.
  2. Cut carrot, broccoli, cucumber and apple into pieces no larger than a pea.
  3. Tear the herb leaf into tiny pieces.
  4. Arrange on a small plate or scatter in the cage for foraging enrichment.
  5. Offer only in small amounts alongside their regular pelleted food.

How much: A small amount as an occasional treat for hamsters, gerbils, rats and mice

Recipe from Burgess Pet Care

Not veterinary advice. Check with your vet first if your pet has allergies, a health condition, is on a special diet or is pregnant. Treats should stay a small part of the daily food. Cut to a safe size and supervise. Terms of use

Owner questions the things everyone asks

How often should I feed my Standard-coat Mouse?

Feed your mouse daily with a complete mouse nugget as the main food, plus small portions of vegetables and fruit. Scatter some of the ration for foraging and always provide fresh water from a bottle, checked every day. For exact amounts, check the food label and ask your vet.7 Pet Wiki plan

What should a Standard-coat Mouse eat, and which foods are dangerous?

The main diet should be complete mouse nuggets, with small daily portions of vegetables and fruit. Dangerous foods include chocolate, caffeine, grapes, raisins, onion, garlic, and xylitol, as listed by the ASPCA. Always avoid these and consult your vet for a full list.79

Should I bathe a Standard-coat Mouse?

No, you should not bathe a Standard-coat Mouse because mice groom themselves and bathing can stress them. Spot-clean the cage daily and do a full clean every one to two weeks instead. If your mouse gets dirty, ask your vet for advice.67 Pet Wiki plan

Does a Standard-coat Mouse need brushing?

No, the short coat needs no brushing because mice groom themselves. Just spot-clean the cage daily and do a full clean every one to two weeks. This keeps their coat naturally shiny and healthy.67 Pet Wiki plan

How do I look after a Standard-coat Mouse's nails and teeth?

Provide chew toys like branches and tubes to help wear down teeth naturally, and a solid-surface wheel for exercise. Nails usually wear down with activity, but if they get too long, ask your exotic-pet vet for guidance. Never trim them yourself without professional advice.367

How much space and exercise does a Standard-coat Mouse need?

They need a roomy, escape-proof cage with bar gaps under 5 mm, at least 2 cm of dust-free bedding, and items like a solid wheel, ropes, branches, and tubes. They are most active at night and dusk, so scatter food for foraging. Furry Diary's plan suggests a full clean every week.367 Pet Wiki plan

Should a Standard-coat Mouse live alone or with friends?

They are sociable and do best in stable, same-sex groups. Females usually live together easily, while males are best with brothers they grew up with. Avoid swapping members in a settled group to prevent stress.81

How long does a Standard-coat Mouse live?

Standard-coat Mice typically live between 1.5 and 3 years. With good care, a healthy diet, and regular vet check-ups, they can enjoy a full lifespan. Furry Diary suggests an annual vet check.213 Pet Wiki plan

Is a Standard-coat Mouse a good pet for children?

Yes, with calm, gentle handling close to the ground they settle well and seldom nip. They are lively and curious, but children should be supervised to ensure gentle interaction. The AFRMA expects show mice to be easy to handle.135

How do I hold a Standard-coat Mouse?

Use calm, gentle handling close to the ground to prevent injury if they jump. Cup them in both hands or let them walk onto your palm. They settle well with patience and seldom nip when handled properly.135

Written from the sources on this page, a few checked guides (VCA, ASPCA, RSPCA) and Pet Wiki's own starting care plan. A friendly guide, not a vet's advice.

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Where this comes from

Every fact on this page has a numbered source. Spotted an error? support@petwiki.app.

  1. Fancy mouse - Wikipedia en.wikipedia.orgused for weight, length, lifespan, temperament, social needs, coat variety overview
  2. MSD Veterinary Manual - Description and Physical Characteristics of Mice msdvetmanual.comused for weight, length, lifespan
  3. RSPCA - Mice rspca.org.ukused for lifespan, activity, handling
  4. AFRMA - Fancy Mice coat varieties afrma.orgused for standard coat wording and recognition
  5. AFRMA - Fancy Mice (standards and colours) afrma.orgused for general mouse standard, show length, variety list, colours, temperament requirement
  6. RSPCA - Mice environment rspca.org.ukused for housing, bedding, cleaning
  7. RSPCA - Mice diet rspca.org.ukused for diet, foraging
  8. RSPCA - Mice company rspca.org.ukused for social needs
  9. ASPCA: People foods to avoid feeding your pets aspca.orgused for owner questions

Checked 2026-09-30. Text is written in our own words from these sources.