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Three rats with pink noses peek out together from a cosy, cream-coloured, textured fabric hammock inside a cage.

Caring for rats as pets

So, you’re thinking about getting some pet rats?

In this guide, you’ll find lots of useful information about how to care for them and everything else to help you decide if they’re the right pet for you (we hope they are). And if you already have rats, you might learn something new!

At Woodgreen, we know that owning pet rats can be very rewarding. These fun, loveable, intelligent creatures will keep you entertained with endless exploring of their surroundings. They really enjoy interacting with humans too – what’s not to love?

While most pet rats like to keep busy, in general females are known to be the most active, whereas males are more partial to a cuddle on the sofa – just some food for thought when you get to choosing your furry friends.

 

Contents

Pet rats facts

  • Male name: Buck
  • Female name: Doe
  • Group of rats: Mischief
  • Life expectancy: Two to three years.
  • Companionship: Ideally, rats should be housed in a group of at least three as they’re happier when they’ve got some pals. This also helps prevent one from being left alone if one passes away.
  • Accommodation: Rats need to be housed in a large cage filled with
    suitable enrichment to keep them interested and active. They won’t
    settle for anything less!
  • Diet: They’re omnivores and should be fed a home-made, well-balanced diet of mixed seeds, grains, meat and vegetable sources.
  • Health: Rats can be prone to breathing issues and occasionally parasites, so choosing the right bedding is very important. Tumours and benign masses are also very common in rats. Make sure you have a rat savvy vet on hand in case your rats need veterinary attention.
  • Family friendly: : Did you know rats can be excellent pets for all the family? Their inquisitive, affectionate and playful nature make them the perfect pet!

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Accommodation

As we’ve mentioned, rats are extremely inquisitive. In fact, they take the word to a whole new level! They love nothing more than climbing, exploring and learning about their surroundings. So, that’s why it’s really important you provide your rats with a suitable sized enclosure. And it should include plenty of fun things to keep them fit and healthy.

The minimum cage size for up to four rats:

  • 80cm high by 50cm deep by 80cm wide
  • Bar spacing 1cm

The minimum cage size for up to 10 rats

  • 123cm high (without stand) by 63cm deep by 93cm wide
  • Bar spacing 1cm
A large blue rat cage with two water bottles, a green plastic house, a blue exercise wheel, wooden climbing toys, and colourful hanging hammocks.

A typical rat cage set up for up to four rats

A spacious rat cage filled with colourful toys, hammocks, ropes, tunnels, and climbing structures, plus hay and bedding on the bottom—perfectly designed for small animals like rats or ferrets.

A typical rat cage set up for up to 10 rats

Where to place your cage

When you’re choosing a location for your rat cage, make sure it’s:

  • Away from windows and draughts.
  • Away from heat sources such as radiators, or ensure they’re switched off.
  • Away from direct/constant sunlight, although the room will need a natural daylight source.
  • Safe from other pets such as cats and dogs.
  • Safe from young, unsupervised children.
  • Away from constant loud noise such as the TV or music system.
  • In a location that ensures plenty of socialising with humans.

Free-range time

Once your rats have bonded with you and settled into a routine, you can start to allow them free-range time several times a week in a rat-safe room or secure playpen. This will enable you to sit and socialise with them. You can also set up the space with lots of different toys for them to explore and interact with. Rats are super smart and can easily be trained using small amounts of their favourite treats. Try making your own agility courses or teach them how to do tricks like fetching items and weaving in and out of objects.

A small animal playpen with rat enrichment features: a blue plastic chair, cardboard boxes, stacked shoe boxes, a purple tub with plants, a food tray, bedding, toys, and various tunnels and enrichment items on an orange mat.

Rat enrichment ideas: a blue plastic chair, cardboard boxes, stacked shoe boxes, a purple tub with compost and herbs, a pea fishing tray, bedding, toys, and tunnels

Need some inspiration? Watch this handy video:

Enrichment

Rats will happily spend hours each day exploring and investigating their surroundings – it’s just what they do! So it may not come as a surprise to you that these busy creatures are also great at climbing. For this reason, make sure you provide them with lots of toys and activities both in and out of their cage. This will help to keep them fit, healthy and happy.

Your rats will enjoy:

  • Pipes and tunnels for running through.
  • Climbing frames like old wine racks and metal CD towers.
  • Hammocks and ropes. Rats love sleeping together in hammocks and both can be purchased or homemade. Find out how to make your own.
  • Sputniks – various-sized, plastic hides that can be hung from the ceiling of the cage.
  • Cardboard boxes, all shapes and sizes. Cut a few holes in them for added exploring fun.
  • Parrot toys and perches to encourage balancing, jumping and chewing.
  • Minimum 12″ extra-large solid exercise rat wheel (but many rats will require and prefer larger).
  • Pea fishing – a nice activity for hot summer days. Add a shallow dish of cool water to their cage, and float some green peas or sweetcorn in for the rats to fish out.
  • Litter trays are ideal if you would like to litter train your rats. Place one under a favourite hammock, as they tend to use the toilet as soon as they get up. Use one to three corner trays placed around the cage and on different levels.
  • Dig trays. As well as digging substrate in the base of their cage, why not give them a storage box filled with a different substrate, or even Coco soil for them to dig through and forage for food!

For more enrichment ideas, visit:

Top tip – use shower curtain hooks to attach hammocks and toys to your cage

A large rat cage with enrichment such as wheels, filled with toys, wooden branches, a blue exercise wheel, ropes, platforms, and shredded paper—designed as an elaborate play area for small pets.

A large rat cage with wheels, filled with toys, wooden branches, ropes, ledges and shredded cardboard substrate.

Choosing bedding for pet rats

Like us humans, rats like a comfy bed. And it’s vital to use the correct bedding and substrate for your rats, otherwise it could have a negative effect on their health. Sawdust and most standard wood shavings sold in pet shops can be harmful to your rats’ skin and airway, and can give you an allergic reaction too!

Substrate options

For the base of the cage:

  • Shredded card material e.g. Ecobale, Pillow Wad Eco-Nest, Greenmile.
  • Hemp bedding such as Aubiose (non-fragranced).
  • Bedmax/Littlemax – kiln dried and dust extracted shavings for horses.
  • Bioactive coco soil/ coco coir for digging

Nesting/comfy bedding to place in hiding spaces

  • White, soft tissue paper bedding such as tea bag bedding.*
  • Fleece or towels.
  • Dust extracted hay.

*Avoid cotton-wool type bedding – this can be very dangerous as it can get get tightly wrapped around their body, tail and legs.

Litter trays

Use non-fragranced paper pellets e.g. Back to Nature.

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Cleaning

Keeping your rats’ cage clean is key to preventing serious health conditions such as respiratory problems and bumble foot – a very painful foot infection.

Daily – spot clean

  1. Pick up poo and wet/dirty bedding and substrate.
  2. Replace dirty bedding and substrate.
  3. Remove any fresh food (e.g. veg) they haven’t eaten from the previous day.
  4. Change their water.
  5. Clean any used litter trays every other day (or less frequently depending on your number of rats), discarding the used litter. Wash and dry the tray before placing in clean litter.
  6. Wipe down any plastic surfaces that have been urinated on, replacing any enrichment that has become smelly such as hammocks – these will need replacing weekly, or sometimes twice weekly.

Fortnightly – refresh clean

This may need to be done more often depending on the number of rats you have in the cage:

  1. Place your rats in a secure plastic cat carrier with plenty of bedding and substrate in from their cage. Position the carrier in a safe, quiet space away from where you’re cleaning.
  2. Remove toys, enrichment, bowls, bottles and clean them with pet-friendly disinfectant.
  3. For any hammocks or ropes, wash in your washing machine with non-bio detergent at 60°C.
  4. Fully sweep out their cage and wipe down with pet-friendly disinfectant.
  5. Set up your rats’ enclosure with fresh bedding and substrate and place different toys in the cage for interest and to allow them to use the whole space within the cage.

Top tip – place any items that need to be machine washed into an old pillow case or a laundry bag. This will stop rat hair and any metal clips from clogging up or damaging the machine

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Rat companionship

Four white rats stand in a row on a shelf inside a cage, facing a hand that is reaching towards them. The cage contains hammocks and a large purple plastic hideaway.

Rats are social butterflies and need the companionship of other rats to truly thrive. Lone rats crave this attention so will often become depressed or display aggressive, nervous or over-affectionate behaviour. If you find yourself with a lone rat of any age, contact Woodgreen or your local rescue centre to help find your rat a companion.

How many rats?

When it comes to the number of rats you should keep, three (or more) is ideal. This means they will create their own social network, which maintains a healthy dynamic. Having more than two can also help to prevent a rat from being left on their own if one passes away.

Suitable combinations

It’s usually best to keep rats in same-sex groups. However, males can be castrated if they display hormone related behaviours and successfully mixed back with their male friends, or with females.

Female rats can also rats can also be neutered if they’re displaying hormonal behaviour. If they still can’t be mixed then they can live with males, either neutered or entire. An experienced, rat-friendly vet can neuter your rats.

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Introducing your rats to each other

If you find yourself with a lone rat, or you’d like to increase the size of your mischief, Woodgreen can help! We have an onsite mixing service which could introduce your rat (or rats) to a new companion or three. This happens through mixing onsite or by providing you with advice to enable you to mix them at home.

Mixing methods

Unlike other small pet species, introducing rats is best done in a smaller neutral space which doesn’t contain the scent of any of the rats. This reduces the chance of potentially dangerous fights starting out. It also encourages mutual feeding, grooming and the building of strong relationships quicker.

Always start mixes early in the morning so you have plenty of time to monitor initial interactions.

For more mixing advice and techniques, visit our mixing guide.

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Feeding your rats

As rats are omnivores, they need both protein and vegetables in their diet. There are many rat complete mixes available to purchase, but finding one that meets their exact requirements is tricky.

We recommend the great homemade rat food mixes available from ratrations.co.uk, which include mixes for the different stages of their life. Lots of rat owners choose to make their own rat food – making sure their rats get everything they need. See our simple homemade rat food recipe, which Woodgreen use for our rats.

If you’d like to learn more about making your own mixes, you can’t go wrong with the book: The Scuttling Gou.rmet: A Guide to Wholesome Nutrition for Rats by Alison Campbell

How much to feed

Feed your rats around 15g of dried food each, per day (around two tablespoons each). Rats are scavengers – they love to forage for food and tasty treats. So mix it up by scattering their daily allowance around their cage and hiding treats in toys or interesting items. You can also make your own toys to hide some of their food in, like these Rodent crackers.

Healthy treats (to be fed in moderation)

  • Small amounts of fresh chopped fruit and vegetables such as strawberries, banana, carrot, celery, peas, kale, pear, melon, grapes.
  • Boiled chicken on the bone – offer them a leg bone with some meat on.
  • Rice or pasta (cooked or raw).
  • Boiled eggs.
  • Dry bread.
  • Cat food – meat in jelly or gravy. Use this to help you when giving any medication to your rats.
  • Wholegrain low-sugar cereals (with less than 5% sugar), such as oat Cheerios, are a good option.

Explore our guide to foods rats can eat and foods to avoid for more feeding ideas and advice.

Water

It’s important your rats have access to daily, fresh, clean water. Ideally, provide this in two bottles or securely mounted bowls, at each at each end of the cage, or across both levels if you have a large two-tier cage, in case one breaks

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Homemade rat food recipe

If you’d like to have a go at making a healthy mix for your pet rats, below is a basic recipe we use at Woodgreen that will suit rats of all ages. Once you’ve made your mix, store it in a suitable container with an airtight lid. Note down the date you made the mix, and aim to use it within three months.

A close-up of two hands holding a mix of dried seeds, nuts, and plant pieces above a blue container. The mixture includes peanuts, maize kernels, and various grains.

You will need:

  • 10 scoops of base mix
  • 5 scoops of processed grains
  • 2 scoops of protein source
  • 2 scoops of dried herbs and vegetables
  • 1 scoop of healthy seeds

Base mix

A mixture of the following:

  • Dodson & Horrell Conditioning Mix
  • Mr Johnson’s Special ‘No Added Pellets’ Rabbit Food
  • Allen & Page Green Pea Mix for rabbits
  • Extra Select Premium Large Pea Rabbit Food

Processed grains

A mixture of at least three of the following:

  • Low sugar (less than 5% sugar) breakfast cereal e.g. Lidl/Sainsburys Cornflakes, Aldi Wheat Biscuits, Morrisons Puffed Wheat, Oat Cheerios, Tesco/Asda Rice Snaps
  • Dried egg noodles
  • Dried pasta or spaghetti
  • Wholegrain rice
  • Plain rice crackers
  • Plain popcorn (no added sugar, salt, oils etc)

Protein source

A mixture of the following:

  • Fish based dog kibble (no meat/animal derivatives and at least 20-25% protein)
  • Dried insects/shrimp/fish
  • Roasted soya beans
  • Lentils
  • Mealworms (only in small amounts due to fat content)

Dried herbs and vegetables

  • Burgess wildflower forage
  • Burgess Luscious leaves forage
  • Pets at Home Dried Vegetable Mix
  • Pets at Home Crunchy Dried Beetroot and Parsnip Mix
  • Naturals Rosewood Herbs Plus

Healthy seeds

A mixture of the following:

  • Wild bird seed mix
  • Parrot seed mix
  • Sunflower seeds (only small amounts due to fat content)
  • Peanuts (only small amounts due to fat content)
  • Pumpkin seeds
  • Linseed
  • Hempseed

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Handling your rats

When taking your new furry friends home, allow them to settle for a day or two before regular handling and time out of the cage. New owners and environments can be very intimidating for a rat, possibly resulting in a bite.

A person in a green jacket gently holds two pet rats, one dark brown and one black and white, in their arms. The person is smiling softly and wearing a round badge and a wristband.

Let them come to you

Your rats will find it more enjoyable and relaxing to climb and sit on your arms and shoulders rather than being held. Have some tasty treats on hand to encourage them to come towards the front of the cage, then place your arm out for them to climb onto. If your rat is a little timid, encourage them to walk into a tunnel and allow them to climb out onto your lap in their own time.

How to pick your rats up

Rats can feel threatened by the sight of a hand suddenly hovering above them when they’re resting. Those who have bonded with their owner are often very inquisitive and will come to the door of the cage or stand on the edge of their hammocks, ready for you.

A person in a green jumper holds three pet rats—one white, one black and white, and one grey—in front of a cage with animal supplies in the background.

When picking them up:

  • Ensure they’re awake, alert and aware of your movements. Quietly talking to them can make them aware that you’re there.
  • Gently but confidently place one hand underneath them behind their front legs.
  • Lift and support their rear end with the other hand, placing the rat into your arms.
  • Have some tasty treats to hand!

Never try to pick rats up by their tail – this can result in damage or even loss of the tail.

Wear cosy clothing

Wearing a baggy hoody or a dressing gown during free-range time is always popular with rats. They can sit and snuggle with you once they’ve had enough of exploring – or use you as a safe space to return to if they’re not feeling confident outside of their accommodation.

A person wearing a cosy, light-coloured knitted jumper holds a black and brown rat gently in their hands. The rat's tail hangs down, and it appears alert and comfortable.

Transporting your rats

It’s important that you always have a suitable pet carrier available in case you need to rush your rats to the vet, or to use whilst you clean out their enclosure. Cardboard boxes can quickly and easily be chewed through, leading to escapees.

Hard plastic cat carriers like the one in the image below are perfect for your rats to use. Make sure the bar spacing is small enough so that any female or young rats can’t escape through them. To keep them relaxed and happy, place a fleecy blanket in the base of the carrier for them to snuggle and hide in

A person wearing blue gloves gently holds a white rat in front of an open teal pet carrier, with a colourful towel underneath.

Health checking your rats

To keep your rats in tip-top condition, carry out a weekly health check and monitor their behaviour daily. Rats are very good at hiding illness, so signs of health problems may not appear until they are seriously unwell.

If you notice any changes or have concerns, contact a rat-savvy vet as soon as possible.

You can also watch our guide to rat health checks (see below) and learn what signs to look out for on our Rat Health Advice page.

Finding a vet

When it comes to your rats’ care, it’s really important to find a vet in your area who has lots of experience with rats. Most vets will see cats and dogs on a daily basis and will have an extensive knowledge of their needs. Other species such as rats will rarely be seen by most vets.

So finding someone who has lots of experience of seeing, diagnosing and treating these species is vital.

  • Look for an Exotics Veterinary Practice – they may have more experience and be cheaper in the long term than other vets.
  • Look here to find a rat friendly vet in your area: Rat Vet Reviews UK | Facebook
  • Talk to friends and family who own or have owned rats to see if there are any vets they recommend.
  • Talk to veterinary practices themselves to find out if there are any rat savvy vets within the practice. Don’t be afraid to ask them how many they see on a weekly basis to help you decide whether they’re the right vet for you

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Common illnesses

Lumps, bumps and tumours

Sadly, tumours and benign masses are very common in rats, especially females. These can develop as young as a year old, so health check your rats regularly.

Breathing problems

Respiratory infections are also a very common illness in rats. These are caused by bacteria in the respiratory tract, which makes the rat unwell. Pre-existing respiratory conditions in rats can be exacerbated by stress, as a result of poor ventilation, dusty substrate, change in temperatures, predators in the home, bullying by other rats and old age.

Along with medical support from your vet, choosing suitable substrate, cleaning the cage to a high standard, washing the hammocks and bars of the cage, keeping it well ventilated and predators away, will all help prevent and manage this illness.

Neutering your rats

Although rats are typically not neutered, it’s possible and could have many benefits. Some rats become hormonally aggressive and get into spats with one another, or take it out on people. In these cases, neutering can stop this behaviour and can also help them stay in a bonded pair or group. If you do choose to neuter your rats, choose an experienced vet.

Find out more about pet rat health and care

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Looking for more expert pet advice?

We cover a range of different topics on our website – and not just for your small furry friends, but cats and dogs, too!

Not only that, but we also offer phone appointments, workshops, training classes, webinars and courses.

Call 0300 303 9333 or email info@woodgreen.org.uk

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