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Mini Rex Rabbit
Small Pets · Rabbits

Mini Rex Rabbit

Oryctolagus cuniculus

Velveteen fur, gentle nature, famously tender feetIntermediate

Lifespan
8-12 years
Weight
3-4.5 lb; ARBA maximum 4.5 lb
Social needs
Social; keep as a neutered, bonded pair
Time
Daily; 1-2 hours of interaction, exercise, and health checks
Cost
Medium
Diet
Unlimited grass hay, daily leafy greens, a measured ration of plain pellets (no more than about 0.4 oz per lb)

Overview

What is this animal?

  • The Mini Rex carries the recessive rex gene, which shortens the guard hairs to the level of the dense undercoat and produces a plush, velvet-like coat standing about 5/8 in deep.
  • Monna Berryhill developed the breed in Texas in 1984 by crossing a Dwarf Rex buck with a small standard Rex doe, the ARBA recognized it in 1988, and it has ranked among the most popular pet and show rabbits in the United States ever since.
  • At 3-4.5 lb a Mini Rex sits between the tiny Netherland Dwarf and mid-sized breeds like the Dutch, with a normal muzzle rather than the flattened face of a Holland Lop.
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  • It is still a full rabbit commitment of 8-12 years.
  • The welfare standard is a neutered, bonded pair with generous permanent space and daily exercise, never a lone rabbit in a hutch.

Temperament

  • Mini Rex are generally calm, tolerant, and people-oriented, closer in temperament to the steady Dutch than to the more reactive Netherland Dwarf, though youngsters can be lively.
  • Like all rabbits they are prey animals that prefer four feet on the ground and dislike being picked up and carried.
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  • The velvety coat invites constant stroking, and many Mini Rex genuinely enjoy long floor-level petting sessions, which suits gentle, seated interaction better than a child's lap.
  • They are social animals and should live with a neutered, bonded companion, as neutering also improves litter habits and pairing success.

A good fit for

  • Keepers wanting a calm, low-grooming small breed
  • Households happy to interact at floor level
  • Owners committed to a neutered, bonded pair
  • Homes offering soft-floored free-roam space

Common mistakes to avoid

  • Wire or bare hard floors causing sore hocks
  • Over-brushing the delicate rex coat
  • Obesity adding pressure to thinly furred hocks
  • Keeping a single rabbit or hutch-only housing
  • Skipping RHDV2 vaccination and neutering

Enclosure

Minimum 65 sq ft of floor, for the pair · 10 x 6.5 x 3.3 ft

Cannot be kept alone. The minimum is 2, and the space above is for that group.

  • Give a bonded pair a permanent enclosure of at least 10 x 6.5 ft (about 65 sq ft) and 39 in high, accessible day and night, plus supervised free-roam time in a rabbit-proofed area, as a shop-bought hutch on its own is not enough.
  • Flooring matters more for this breed than for most rabbits: the short rex coat leaves the fur under the feet (rabbits have no pads) thin and short, so wire floors are ruled out entirely and hard surfaces should be covered with mats, fleece, rugs, or deep bedding.
  • House them indoors or in a fully predator-proof, weatherproof shelter away from damp and draughts.
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  • Rabbits tolerate cold far better than heat, so avoid sustained temperatures above about 77°F.
  • Add hides, tunnels, platforms, digging boxes, and a litter tray, which most Mini Rex learn to use quickly once neutered.

Check your enclosure

Supplies

Setup

  • Housing and secure exercise space
  • Litter trays, bowls, carrier, hides

Ongoing

  • Grass hay by the bale or the largest box available
  • Plain uniform adult rabbit pellets (no seeds, no coloured bits)
  • Mixed leafy greens for daily feeding
  • Heavy ceramic water bowl (tip-proof)
  • Hay rack or hay-filled litter tray
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  • Eggcup or small scale for measuring pellets
  • Untreated willow or apple chews
  • Airtight bin to keep pellets fresh

Safe substrate: Paper-based litter in the tray, topped with hay · Fleece or washable mats on the living floor · Straw for outdoor warmth

Work out the cost

Care routine

Daily

  • Check droppings and appetite
  • Check the rear for soiling and flystrike (twice a day in warm weather)
  • Company and time out
  • Fresh greens and a measured pellet portion
  • Fresh water
  • Spot-clean the enclosure
  • Top up unlimited hay
  • Watch them while they are awake
Show 8 more

Every few days

  • Change the litter trayevery 2 days
  • Check the coat and remove loose furevery 3 days

Weekly

  • Deep-clean and change bedding
  • Hands-on health check
  • Rotate enrichment
  • Weigh-in

Monthly

  • Check supplies and dates

Less often

  • Trim nailsevery 6 weeks

Vet: Annual exam, vaccinations and dental check, every 12 months (every 6 months from 5 years old)

Tools

Is your enclosure big enough?Check your measurements against the recommended sizeWhat will it cost?Setup, monthly and over its whole life, itemisedCan it eat that?Search 65 foods, from everyday to never

Care in depth

Diet

Unlimited grass hay, daily leafy greens, a measured ration of plain pellets (no more than about 0.4 oz per lb)
  • Unlimited grass hay such as Timothy should make up at least 85% of the diet, wearing down the continuously growing teeth and keeping the gut moving.
  • Add a daily portion of varied leafy greens and a small measured ration of plain pellets, no more than about 0.9 oz (an eggcup) per 2.2 pounds of body weight a day (roughly 1.2-1.8 oz for a Mini Rex), with fresh water always available, ideally from a bowl.
  • Avoid muesli mixes, sugary treats, and more than occasional fruit, which drive selective feeding, obesity, and dental disease.
  • Extra weight is doubly harmful in a Mini Rex because it presses the thinly furred hocks into the floor.
  • Introduce any diet change gradually to protect the sensitive gut from stasis.

Health

Signs of good health, and the common problems
  • Sore hocks (pododermatitis) is this breed's signature risk: rex fur leaves the feet with little protective padding, so check the hocks weekly for thinning fur, redness, or scabs and improve the flooring at the first sign.
  • Obesity, overgrown nails, damp bedding, and dirty litter all make hock sores dramatically worse.
  • Gut stasis is a life-threatening emergency whenever a rabbit stops eating or passing droppings: call a rabbit-savvy vet straight away, not later in the day.
  • Vaccinate against RHDV2 (in the UK and Europe also against myxomatosis and RHDV1, where those vaccines exist), neuter to prevent uterine cancer in does and ease bonding, and register with a rabbit-experienced vet early for annual dental and weight checks.
  • The velvet coat itself needs almost no brushing, and stiff brushes can damage it.
  • Strip loose fur during moults with damp hands or a soft grooming mitt instead.

Is this urgent?

8 warning signs and how fast to act, 6 of them right away

A rabbit that stops eating is an emergency, not a wait-and-see. Nothing else on this page is as time-critical.

Go now

Not eating, or not producing droppingsCall an exotics vet. Some sources treat 3 to 4 hours as the point to start worrying and 12 hours as an outright emergency; do not wait to find out which camp is right for your rabbit. Gut stasis can become life-threatening within 12 to 24 hours, and every hour of delay makes it harder to reverse.
8 hours
Hunched with the belly pressed to the floorGo now. A rabbit in this posture is in significant pain.
Now
Loud teeth grindingGo now. Distinct from the soft purr of a content rabbit. This is a pain signal.
Now
Hard, bloated abdomenGo now. Do not force-feed and do not massage. Bloat may need decompression rather than gut motility drugs, and the two treatments conflict.
Now
Maggots or fly eggs near the rearGo now. Flystrike. Check the rear twice a day in warm weather, every day, for every rabbit.
Now
Cannot cope with heat: panting, wet nose, lying flat and unresponsiveMove to shade, offer a wrapped cool pack, wet the ears, and go. Rabbits cannot pant effectively to cool themselves; heat risk starts at about 77°F and rises steeply from there.
Now

Today

Head tilt, or eyes flicking side to sideBook today. Outcomes are far better with early treatment.
Today
Weight down 5 percent or more since last week (about 1.8 oz in a 2.2 lb dwarf, about 11 oz in a 13 lb giant)Call today with the weight history. Fur hides body condition completely. The scale sees it first.
Today

Two rabbits are the minimum, and a bonded pair will also tell you when something is wrong: a rabbit sitting apart from its partner is worth a second look.

This is general guidance for a healthy adult, not a diagnosis. An exotics vet who knows your animal always overrides it, and the time to find one is before you need one.

Bedding and substrate

3 safe, 1 with a caveat, 3 to avoid

Rabbits need a clean, dry, non-slip floor plus a separate deep litter tray. The two jobs need two materials.

Safe

Paper-based litter in the tray, topped with hayRabbits eat while they toilet. Hay over paper litter serves both habits.
safe
Fleece or washable mats on the living floorNon-slip, warm, and washable.
safe
Straw for outdoor warmthInsulating, and different from hay: straw is bedding, hay is food. An outdoor rabbit needs both.
safe

With a caveat

Wood pelletsVery absorbent in a tray, uncomfortable underfoot as a floor.
with a caveat

Never

Clumping cat litterSwallowed while grooming and eating, and it clumps internally.
never
Pine and cedar shavingsAromatic oils; airway irritation in a species already prone to respiratory disease.
never
Wire mesh floorsCauses sore hocks. Rabbits have no protective pad on the underside of the foot.
never

Check and clean the rear at least twice a day in warm weather, for every rabbit. A soiled or damp rear is what flystrike needs.

Top resources for more info

Independent creators and organisations we would send a friend to. We have no affiliation with any of them, and nothing here is sponsored. Links checked 2026-10-22.

YouTubers

Lennon The BunnyRabbit care basics, free-roaming, fostering and advocacySincerely, CinnabunLiving with a free-roam house rabbit; care and wellness tipsBobo Ellie BunsDaily life with bonded Holland lops; more company than tutorials

Sites

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Is your enclosure big enough?

These are the smallest sizes that give good conditions, not legal minimums. More room is always better.

Minimum 65 sq ft of floor, for the pair · 10 x 6.5 x 3.3 ft

Every figure, and where it comes from
Minimum floor area65 sq ft of continuous, unbroken floor
As dimensions10 x 6.5 x 3.3 ft
CompanyCannot be kept alone. The minimum is 2, and the space above is for that group.
The recognised standards do not agree on this one
Rabbit Welfare Association & Fund, RSPCA, PDSA (UK): 10 x 6.5 x 3.3 ft (65 sq ft) for a pair, available at all times. The figure this site uses: RWAF's recommended living area. It is shelter and exercise space together, for two average-sized rabbits; a lone rabbit needs the same, and larger breeds need more. PDSA calls it the absolute minimum and recommends much more. Checked 2026-10-23.
British Veterinary Association: 10 x 6 x 3 ft (58 sq ft) total area for a pair. For two average-sized rabbits. Checked 2026-10-22.

What it really costs

Setup, monthly, first year and across a whole life, itemised and with the electricity worked out from the actual wattage. Published figures for the same animal disagree by a factor of four, so the calculator shows ranges rather than picking one.

Can a Mini Rex Rabbit eat that?

Hay first, greens second, everything else barely at all. A rabbit fed mostly pellets and treats is a rabbit with dental disease waiting to happen.

The full list: 65 foods

Never (25)

AlcoholNo safe amount at any body weight on this site.
never
AvocadoPersin, concentrated in the leaves, skin and stone. It damages the heart in birds and in many mammals, rabbits and rodents among them; it has not been studied in reptiles, so treat it as unsafe for them too.
never
BindweedToxic, and it grows through hedges where people forage.
never
Bread and baked goodsRefined starch ferments in the hindgut and causes gas and stasis. No nutritional case for it either.
never
ButtercupProtoanemonin, an irritant toxin. Common in lawns, so check what you pick.
never
CaffeineCoffee, tea and energy drinks. Cardiac and neurological toxicity at tiny doses for an animal this size.
never
ChocolateTheobromine and caffeine. Small mammals and reptiles cannot clear either.
never
DairyAdults are lactose intolerant and the gut flora cannot handle it.
never
Dried fruitSugar concentrated several times over, and it sticks to the teeth. Most commercial small-pet treats are exactly this.
never
FoxgloveCardiac glycosides. Fatal.
never
GarlicSame allium toxicity as onion, and more concentrated by weight.
never
Iceberg lettuceAlmost entirely water with negligible nutrition, and it contains lactucarium, which causes diarrhoea in quantity. It displaces food that would have been useful.
never
Lawn clippingsMown grass ferments quickly in the pile and can cause severe gut upset. Fresh growing grass is fine.
never
LeekAllium family. Same mechanism as onion and garlic.
never
MeatA hindgut fermenter has no way to process animal protein. It disrupts the gut flora the animal depends on.
never
Muesli mixLets a rabbit pick out the sweet, starchy bits and leave the fibre, which is linked to dental disease, gut problems and obesity. Switch to plain nuggets gradually, over two to four weeks.
never
MushroomsNot part of any of these animals' natural diet, and the risk from misidentified varieties is not worth the zero upside.
never
NutsFat and phosphorus loads a herbivore is not built for, and a choking risk.
never
OnionOrganosulphur compounds damage red blood cells. The whole allium family is out.
never
PotatoSolanine in the skin and any green part, plus a starch load the hindgut cannot handle.
never
Raw beansLectins. Also a gas producer in a species that cannot vomit or belch.
never
RhubarbVery high in soluble oxalate, high enough to cause acute kidney injury. The leaves are worse than the stalks.
never
Salty or seasoned human foodSalt, oil and seasoning. Crisps, chips, seasoned leftovers and processed meat are all out.
never
SweetcornThe hulls are indigestible and are a recognised blockage risk in small herbivores.
never
Yogurt dropsSold in every pet shop for rabbits. Dairy plus sugar, and there is no version of this that is appropriate.
never

Rare treats (13)

AppleSugar. The seeds contain a cyanogenic compound and must be removed. A thin slice, once or twice a week. Never the seeds or core.
rare treat
BananaVery high in sugar and starch, and most animals will overeat it given the chance. A slice the width of a fingernail, rarely.
rare treat
BlueberrySugar, but a small portion size makes it easy to control. One or two berries, twice a week.
rare treat
Brussels sproutsHighly gas-forming. Half a sprout, rarely.
rare treat
CarrotSold as the archetypal rabbit food and it is nothing of the kind: carrot is a root vegetable with a high sugar content. The leafy tops, by contrast, are an excellent green. A thin slice as a treat. The tops can be fed freely.
rare treat
CauliflowerOne of the most gas-forming brassicas. A very small piece, occasionally.
rare treat
GrapesVery high in sugar. Halve them, because a whole grape is a choking hazard. One halved grape, rarely.
rare treat
OrangeAcidic and sugary; can irritate the mouth and gut. A tiny segment, rarely if at all.
rare treat
PearSugar. Remove the seeds. A thin slice occasionally.
rare treat
PeasHigh in starch and sugar. The pods and leaves are better than the peas. A few pods occasionally.
rare treat
StrawberrySugar, though lower than most fruit. The leaves are actually the better part. Half a small berry, once or twice a week.
rare treat
TomatoThe ripe flesh is safe in small amounts. The leaves, stems and any green fruit contain tomatine, a glycoalkaloid related to the solanine in potatoes, and must never be offered. A small piece of ripe flesh, occasionally. Never the plant.
rare treat
WatermelonSugar and a very high water content, which together can loosen the gut. Remove the seeds. A small cube in hot weather, rarely.
rare treat

Occasional (17)

BasilSafe and well liked. Rotate rather than relying on it. A few leaves.
occasional
Bok choyGood green, mildly goitrogenic like other brassicas. A leaf or two a few times a week.
occasional
BroccoliNutritious but a notable gas producer. Leaves and stalk are better tolerated than the florets. A small floret or a piece of stalk, twice a week.
occasional
CabbageA brassica. Gas-forming in quantity, and goitrogenic with heavy long-term feeding. A small piece, once or twice a week.
occasional
CelerySafe and well liked. Cut across the stalk so the long fibres cannot catch. A short piece, cut into segments.
occasional
ChardSame oxalate issue as spinach. A small leaf, occasionally.
occasional
CourgetteSafe and mild. Serve raw. A few slices a few times a week.
occasional
CucumberSafe, but it is mostly water with very little in it. Useful for hydration in warm weather, poor as a staple. A few slices.
occasional
DillSafe in rotation. A few fronds.
occasional
Green beansSafe cooked or raw in small amounts. Gas-forming in quantity. One or two, occasionally.
occasional
KaleHigh in calcium and a mild goitrogen. Genuinely nutritious, but not the everyday green it is often sold as. A leaf or two, two or three times a week.
occasional
MintSafe in small amounts; strongly flavoured and not every animal wants it. A leaf or two.
occasional
ParsleyNutritious but relatively high in calcium. Fine in rotation, not as the whole green portion. A few sprigs, a few times a week.
occasional
PumpkinSafe and well tolerated in small amounts. A small cube occasionally.
occasional
RocketPeppery and well tolerated in rotation. A small handful, a few times a week.
occasional
SpinachHigh in oxalates, which bind calcium and contribute to bladder sludge and stones in animals prone to them. A single small leaf, no more than once or twice a week.
occasional
WatercressNutritious, strongly flavoured, high in calcium. A small handful occasionally.
occasional

Everyday foods (10)

Bell pepperOne of the best everyday vegetables here: high in vitamin C, low in sugar, no oxalate problem. Remove the seeds and stalk. A few strips daily.
everyday food
Bramble leavesBlackberry leaves are excellent forage and rabbits take them readily. A few leaves daily.
everyday food
Carrot topsThe leaves are a proper green and much better food than the root. A handful as part of the daily greens.
everyday food
CorianderWell tolerated, aromatic, and most animals take it readily. Part of a daily mixed handful.
everyday food
Dandelion leavesOne of the best greens available, and free. Pick well away from roadsides and anywhere that may have been sprayed. A generous handful daily.
everyday food
GrassFresh growing grass is excellent, picked or grazed, from ground that has not been sprayed. As much as they will graze. Never mown clippings.
everyday food
Grass hayShould be about 85 percent of what this animal eats, available at all times. It is what wears the teeth down and what keeps the gut moving. Unlimited, always.
everyday food
PelletsA uniform pelleted nugget, not a muesli mix. Muesli lets a rabbit pick out the sweet bits and leave the fibre, which is how dental disease starts. A measured daily ration, never free-fed: no more than about 0.9 oz (an eggcup) per 2.2 lb of body weight, and less if weight creeps up. Weigh it for a large breed.
everyday food
PlantainA common lawn weed and one of the better forage plants. A handful daily.
everyday food
Romaine lettuceDark leafy lettuce with real nutritional content and a good water balance. A generous handful daily as part of a mixed selection.
everyday food

That plant or food is not on our list. Do not offer it: a rabbit cannot vomit, so anything that goes in has to go all the way through. Check with an exotics vet.

A rabbit that has not eaten for 8 hours needs a vet, whatever the reason. Diet changes are the most common trigger for that, which is why new foods go in one at a time.