Sulcata Tortoise Care: The Essential Do's and Don'ts

I keep this list taped up for anyone starting with a sulcata (Centrochelys sulcata, the African spurred tortoise), because the species is forgiving about almost nothing that matters and unforgiving about the big stuff. Sulcatas are the largest mainland tortoise in the world — a hatchling you can hold in one hand becomes a 70-to-100-pound animal that lives 70-plus years — and the difference between a thriving one and a deformed, rehomed one comes down to a handful of do's and don'ts. Here they are, the way I'd give them to a friend.

DO plan for the adult, not the baby

The number-one rule, because every other failure descends from it. That palm-sized hatchling grows into a 24-to-30-inch, 70-to-100-pound tortoise — large males can pass 150 pounds — and it can live longer than the person who bought it. Before you acquire one, answer honestly: Do I have a warm-climate yard or a serious heated building, and a plan for the next 70 years? If not, choose a smaller species. This is the question rescues wish every buyer had asked.

DON'T house an adult indoors or in a glass tank

A glass aquarium is wrong even for a juvenile — too tall, outgrown in months, and stressful because the tortoise keeps trying to walk through the clear walls. For a baby, use an open-topped tortoise table. For an adult, indoor housing is simply not humane: they need a large outdoor enclosure. Indoors is a temporary nursery, not a home.

DO build a secure, dig-proof outdoor enclosure for adults

Sulcatas are champion diggers and determined pushers. Your enclosure must be:

• ◆Dig-proof — sink a solid barrier well below ground so they can't tunnel out (they excavate burrows several feet deep in the wild).
• ◆Climb-proof and opaque — solid walls they can't see past or scramble over.
• ◆Equipped with a heated shelter — an insulated, heated tortoise house for cool nights and cold seasons.
• ◆Shaded and watered — shade to escape heat plus a shallow water/wallow area.
• ◆Grazeable — ideally planted with safe grasses they can eat directly.

DON'T let a sulcata get cold

Sulcatas come from hot sub-Saharan Africa and do not hibernate. They need warmth year-round. Target a basking spot of 95-100°F, a warm side in the mid-80s, a cool side in the high 70s, and nights that stay above roughly 65-70°F for youngsters. In cold climates, "keeping a sulcata" means committing to heated indoor space through winter — never a cold garage or unheated shed.

DO provide UVB or real sunlight

Heat and UVB are two separate needs. Indoor tortoises require a proper UVB tube (replaced on the manufacturer's schedule) alongside the basking bulb — without it they can't use dietary calcium and develop metabolic bone disease. Outdoors, direct unfiltered sunlight is far better than any bulb. Window glass filters out the useful UVB, so a sunny window does not count.

DON'T raise hatchlings bone-dry

The bumpy, pyramided shells you see on so many captive sulcatas are largely a rearing mistake. Pyramiding is most strongly tied to raising fast-growing youngsters too dry, made worse by excess protein and too little exercise. So with hatchlings and juveniles: keep a damp substrate layer and a humid hide they can retreat into, feed grass not protein, and give them room to move. Adults live drier, but the young need that humidity to grow a smooth shell. The Merck Veterinary Manual's reptile section is a solid non-commercial reference on the husbandry causes of shell and bone disease.

DO feed a grass-based diet

Sulcatas are grazers, built for high-fiber, low-protein, low-sugar vegetation:

• ◆Make grasses and grass hays the bulk of the diet — orchard grass, timothy, Bermuda grass and similar.
• ◆Add edible weeds — dandelion, plantain, clover (in moderation), mallow, pesticide-free.
• ◆Supplement with a few leafy greens — collard, mustard, and turnip greens, endive — as a side, not the base.
• ◆Keep a cuttlebone in the enclosure and lightly dust food with calcium (D3 version only if UVB/sunlight is limited).

DON'T feed fruit, protein, or a pellet diet

These are the diet don'ts that quietly wreck a sulcata:

• ◆No fruit as a regular food — the sugar causes diarrhea and disrupts gut flora.
• ◆No animal protein — no dog or cat food, no meat, no leftovers. Excess protein drives rapid, deforming growth, pyramiding, and bladder/kidney stones.
• ◆No pellet-heavy diet — commercial pellets and high-protein "tortoise" foods shouldn't be the foundation. Grass and hay are.

DO keep fresh water and soak young tortoises

Always provide fresh water the tortoise can step into. Soak hatchlings and juveniles in shallow, lukewarm water a few times a week — it supports hydration and helps prevent the bladder stones that come from chronic dehydration.

DO use the right substrate and enclosure furniture

Give a sulcata something it can dig into — a blend of organic topsoil and coconut coir for indoor youngsters, and natural soil and grass outdoors. Keep a humid layer beneath the surface for hatchlings. Avoid dusty or aromatic substrates like cedar and pine shavings, which irritate a tortoise's lungs, and avoid loose, ingestible materials around feeding areas that can cause impaction. Add a solid hide, a humid hide for the young, and a few flat rocks to help wear down the beak and claws.

DON'T house multiple males together

Sulcata males are territorial and will ram, flip, and injure each other — a flipped tortoise in the sun can overheat and die. Keep adult males separate, and watch any mixed grouping for bullying, blocked access to food, or one animal constantly hiding. More tortoises also means exponentially more space, not the same pen shared.

DO handle minimally and stay close to the ground

Sulcatas are interactive but not cuddly — they dislike being lifted, and a dropped tortoise can crack its shell. Interact at ground level, build the relationship around food and grazing, and keep handling brief. Once an adult weighs 70-plus pounds you won't be picking it up anyway, so plan your routine around a tortoise that lives on the ground.

DON'T forget routine maintenance

A clean, stable enclosure prevents most problems. Daily: fresh food and water, a quick health glance, and waste pickup. Weekly: clean the water/wallow, refresh shelter bedding, and soak hatchlings a couple of times. Monthly: check UVB bulb age, verify every temperature zone with a thermometer, and weigh or measure the tortoise to confirm smooth, steady growth. Boring consistency is exactly what a sulcata wants.

DO get the right tortoise the right way

Because sulcatas are surrendered so often, adoption from a reptile rescue is frequently the most responsible choice — you often get a known-size animal, sometimes with housing included. If you buy a hatchling, choose a reputable breeder, pick an active baby with a smooth firm shell and clear eyes and nose, get an early fecal check from a reptile vet, and quarantine any newcomer from other animals until that check comes back clean.

DO give space to roam, graze, and exercise

Movement is husbandry, not a luxury. Sulcatas evolved to walk and graze for much of the day, and a cramped tortoise that can't exercise grows poorly — inactivity is one of the contributors to pyramiding alongside dryness and protein. A large enclosure with edible grass to graze keeps the tortoise moving naturally, wears the beak and claws, supports digestion, and helps the shell grow flat and smooth. When you plan housing, think of grazing distance, not just square footage.

DON'T let a flipped tortoise cook in the sun

Sulcatas occasionally tip onto their backs — climbing furniture, sparring, or on uneven ground — and a tortoise stuck upside down in direct sun can overheat and die within hours. Keep the enclosure free of tip-over hazards, make sure there's always shade, and check on outdoor tortoises regularly, especially in hot weather. Even a desert animal has limits.

DON'T ignore early warning signs

Most sulcata illness is preventable husbandry failure caught late. Watch for and act on:

• ◆Wheezing, bubbly nose, open-mouth breathing — respiratory infection, usually from cold or damp. Warm and dry the housing and see a reptile vet.
• ◆Soft or deforming shell, weak limbs — metabolic bone disease, from poor UVB/calcium.
• ◆Straining, gritty urates, lethargy — possible bladder stone; get veterinary imaging.
• ◆Soft, smelly shell patches — shell rot from dirty, damp conditions.

Line up an experienced reptile veterinarian who can handle a large tortoise before an emergency — a 90-pound patient is not something you want to be sourcing care for in a panic.

The short version

Do plan for a giant, build a secure heated outdoor space, provide UVB or sun, feed grass, keep babies humid, and watch for early symptoms. Don't house an adult indoors, let it get cold, raise hatchlings dry, or feed fruit and protein. Nail those and a sulcata is one of the most rewarding animals you can keep — a 70-year companion with real personality and a smooth, healthy shell to show for your effort.

For the full walkthrough behind these rules, see my complete sulcata tortoise care guide. If this much animal is more than your space allows, the much smaller Russian tortoise care guide is worth a look, or browse the full exotic animal care library.