Bringing Home a Rabbit or Guinea Pig: The First-Week Setup

Not a low-maintenance starter pet

Rabbits and guinea pigs get sold as easy first animals for children — small, quiet, cheap to keep, tucked in a corner cage and fed a scoop of pellets. Almost none of that is true, and the gap between the myth and the reality is why so many of these animals end up neglected or surrendered within a year.

Start with how long they live. A well-kept rabbit lives eight to twelve years, and guinea pigs commonly reach five to seven. That’s a genuine commitment, closer to a dog than a goldfish. In that time they need daily feeding, daily interaction, regular cage cleaning, and a watchful eye for the health problems that come with fragile, fast-metabolizing bodies. They are prey animals, which means they hide illness until it’s advanced — the attentive owner catches trouble early, the casual one catches it too late.

They’re also intensely social. In the wild, rabbits live in warrens and guinea pigs in herds, and a solitary animal in a cage is a lonely one. Both species do best with a same-species companion: two bonded rabbits or a pair of guinea pigs will groom each other, sleep in a pile, and stay far calmer than a single animal ever does. If you can commit to a pair, do — just be aware that rabbits usually need to be neutered and slowly introduced before they’ll bond, and guinea pigs should be matched carefully by sex and temperament. What you shouldn’t do is house a rabbit and a guinea pig together; their needs, diseases, and body language don’t match, and rabbits can injure the smaller animal.

Housing bigger than the pet store sells

Here’s the uncomfortable truth about the cages and hutches on most store shelves: they are far too small. They’re sized to fit a shop display and a tight budget, not to give the animal room to move, and a rabbit or guinea pig kept in one spends its life unable to do the basic things its body is built for. When in doubt, buy bigger than looks necessary.

A rabbit needs enough room to take several hops in a line and to stand fully upright on its back legs without its ears touching the top — and even a large enclosure isn’t enough on its own. Rabbits need daily run time in a safe, larger space to stretch out and exercise, several hours a day ideally. Guinea pigs are ground-dwellers who don’t climb or jump much, so what they need is floor space, and lots of it: a single pig wants a bare minimum of around 7.5 square feet, and a pair more still. Height matters little for them; width and length are everything.

If your animals will live outdoors, they need a solid, weatherproof structure that shelters them from rain, wind, and summer heat, with a secure run attached so they can graze and move safely. Something like the Aivituvin Wooden Rabbit Hutch with Run pairs a sheltered hutch with an enclosed run, which is the combination outdoor rabbits actually need — our rabbit hutch reviews compare the sturdier weatherproof options in detail.

Indoors, a modular wire cage gives you far more usable space per dollar and lets you expand as needed. The MidWest Critter Nation Double Unit is a favorite for exactly this reason — a large footprint, deep solid pans, and the option to open or divide levels — and we walk through the indoor choices in our small animal cage reviews. Whatever you choose indoors, plan for out-of-cage time too; no cage alone is enough.

Hay is the whole diet, basically

If you remember one thing about feeding rabbits and guinea pigs, make it this: unlimited grass hay is the foundation of the entire diet. Timothy hay and similar grass hays should make up around 80 percent of what these animals eat, available to them all day, every day. Pellets and fresh greens are supplements on top of that base — not the base itself, which is the mistake that quietly causes most of the health problems these animals suffer.

Hay matters for two reasons that are easy to overlook. First, both species have teeth that grow continuously throughout their lives, and the long chewing action of eating coarse hay is what wears those teeth down. Without it, teeth overgrow into painful spurs that stop the animal eating and require veterinary filing. Second, their digestive systems are built to process fiber more or less constantly; a steady flow of hay keeps the gut moving, and a gut that stops moving is a medical emergency (more on that below).

Good hay is clean, green, sweet-smelling, and dust-free — the Oxbow Western Timothy Hay is the reliable benchmark most keepers reach for, and our rabbit & guinea pig hay reviews cover how to judge quality and store it so it stays fresh. Fill a rack or a corner of the enclosure and top it up so it never runs out.

Round the diet out with a daily handful of leafy greens and a small measured portion of quality pellets — a tablespoon or two, not a full bowl. Guinea pigs have one extra, non-negotiable requirement: they can’t make their own vitamin C, so they need a daily source through vitamin-C-rich vegetables or a supplement, or they develop scurvy.

Exercise and enrichment

A rabbit or guinea pig confined to its enclosure around the clock, however roomy, will grow bored, stiff, and often overweight. These are curious, active animals, and they need time outside the cage every day to run, explore, and stretch out properly. Rabbits especially need space to do their full repertoire of hops, binkies, and flat-out sprints; guinea pigs enjoy a secure floor area to potter around and “popcorn” in.

Enrichment matters as much as space. Both species are compulsive chewers — remember those ever-growing teeth — so give them safe things to gnaw: untreated wicker, cardboard, apple twigs, hay-stuffed toys. Tunnels and hideouts let prey animals feel secure enough to actually play, and rotating a few simple objects keeps the environment interesting. A bored small pet chews carpet and furniture; an occupied one chews its toys.

One important caution, because it’s a common and dangerous mistake: exercise wheels are not for rabbits or guinea pigs. Their spines are not built to arch into the curve a wheel forces, and running on one can cause serious back injury. Wheels belong to the smaller rodents — hamsters, mice, and similar — whose bodies handle them safely. If you also keep a hamster, a quality wheel like the Niteangel Super-Silent Hamster Exercise Wheel is excellent for that animal, and our exercise wheel reviews cover sizing wheels correctly by species — but keep it firmly on the hamster’s side of the house, never the rabbit’s or guinea pig’s.

The first week

The day you bring a rabbit or guinea pig home is stressful for them in a way that’s easy to underestimate. They’ve been moved from everything familiar into a new space full of unfamiliar sounds and smells, and as prey animals their instinct is to freeze, hide, and wait to see whether this new place is safe. The kindest thing you can do in the first week is give them quiet and let them settle at their own pace.

Resist the urge to handle them constantly, however tempting. Keep the room calm, limit loud noise and sudden movement, and let the animal come to you rather than reaching in to grab it. Sit nearby, talk softly, offer a piece of greens from your hand. Trust in these species is built slowly and lost quickly, and a rushed, grabby first week can make an animal wary for months.

What you should watch closely, even while you’re keeping your hands off, is eating and pooping. A healthy rabbit or guinea pig eats steadily through the day and leaves a trail of plentiful droppings — that’s your at-a-glance sign the digestive system is working. If a small pet stops eating or stops producing droppings, that is not something to sleep on. A rabbit or guinea pig that hasn’t eaten for around twelve hours may be going into gastrointestinal stasis, where the gut shuts down, and that is a genuine emergency requiring a vet the same day. Learning what normal intake and output look like in the first week is exactly how you’ll recognize the moment something’s wrong.

Health and vets

Rabbits and guinea pigs are exotic pets in veterinary terms, and not every clinic is equipped or experienced to treat them. The single most useful thing you can do before there’s a problem is find an exotics or small-animal vet in your area and confirm they see your species — ideally before you ever need one. In an emergency you do not want to be searching for a clinic that will take a rabbit; you want the number already saved.

A few situations count as urgent rather than “wait and see.” Overgrown teeth that stop an animal eating need prompt attention. Gastrointestinal stasis — signalled by a pet that’s off its food and not passing droppings — is a same-day emergency, because the longer the gut sits still the worse the outlook. More generally, because these animals mask illness so well, any sudden change in appetite, energy, breathing, or droppings deserves a call to the vet rather than a few days of watching.

None of this is meant to alarm you off keeping these wonderful animals — get the housing, the hay, and the daily attention right and they’re hardy, characterful companions for years. But we’re a gear review site, not veterinarians, and nothing here replaces professional advice. When in doubt about your animal’s health, call your exotics vet; that relationship is as much a part of good small-pet keeping as the cage and the hay rack.