# Do Tortoises Drink Water? Hydration and Soaking Basics Yes, tortoises need water, and they drink it with their mouths just like other animals. They do not absorb meaningful amounts of water through their shells, so drinking and soaking serve different purposes. A tortoise that never has access to clean water can become dehydrated even if its enclosure looks humid and its food is fresh. This article is educational and is not a substitute for veterinary diagnosis or treatment. ## Quick Answer - Tortoises drink fresh water from a shallow dish. They do not take in water through the shell, so a bath is not a substitute for drinking. - Soaking helps with hydration, bowel movements, and shedding, but it works best when the tortoise also has a clean water dish available every day. - Most healthy adult tortoises do well with a 15 to 30 minute soak two to three times per week, with more frequent soaks for babies, sick tortoises, or hot weather. - A tortoise that stops drinking, has sunken eyes, or produces thick urates needs a veterinarian, not a longer bath. - Dehydration harms reptiles in measurable ways. In one lizard species, limited drinking water reduced maximum running speed and endurance within 10 days [1]. ## How Tortoises Actually Take In Water ### Drinking from a dish Tortoises lower their heads and drink from standing water. Many owners never see it happen because tortoises often drink quickly and quietly, especially in the morning. A tortoise can go some time between drinks, but it still needs water offered daily. Reptiles in general depend on drinking water more than many owners assume. Research on common lizards found they could not improve their hydration state through food alone, no matter what prey they ate, which suggests drinking water is their main source [2]. Work on rattlesnakes reached a similar conclusion: eating a meal did not restore hydration, and snakes that ate while dehydrated actually reached severe dehydration sooner than snakes that did not eat [3]. A tortoise is not a lizard or a snake, but the pattern is consistent across reptiles. Food water does not replace drinking water. ### Soaking Soaking means placing your tortoise in a shallow container of lukewarm water so its cloaca (the vent at the base of the tail) is in contact with water. Some water can move into the body through the cloaca, and soaking also softens stool and loosens shed skin. Soaking is a useful routine. It is not a replacement for a water dish. ### Do tortoises absorb water through the shell? No. The shell is living bone covered in keratin, and it is not a sponge. Claims that a tortoise can hydrate by sitting on damp substrate or being misted are overstated. Damp substrate helps with humidity and shell health, but it does not replace drinking. ### Do tortoises go in water? Some do, some do not. Species from humid or forested habitats may wade and soak willingly. Species from dry regions may avoid water except to drink. Either way, every tortoise needs a water source it can reach without climbing or tipping. ## Step-by-Step: Offering Water and Soaking Safely 1. **Set up a shallow dish.** The dish should be wide enough for the tortoise to stand in and shallow enough that the head stays above water when the tortoise is at rest. A terra cotta plant saucer works well for many species. 2. **Sink the dish into the substrate.** This lets small tortoises climb in and out easily and reduces flipping risk. 3. **Use clean, lukewarm water.** Refresh it daily. If the tortoise defecates in the dish, clean and refill it right away. 4. **Soak in a separate container.** Use a plastic tub with straight sides, filled to about the level of the tortoise's lower shell (the plastron). Never leave a soaking tortoise unattended, and never let the water get deep enough to cover the nose. 5. **Keep the water warm, not hot.** Test it with your wrist, like a baby bottle. If it feels hot to you, it is too hot for the tortoise. 6. **Watch for drinking.** Some tortoises drink during soaks. That is a bonus, not the main goal. 7. **Dry and return.** Pat the tortoise dry, especially around the neck and legs, then put it back under its heat lamp so it can warm up. 8. **Clean the tub between tortoises.** Do not share soaking water between animals. If you keep other pets, hydration problems can look different across species. A dog that suddenly drinks far more than usual may have a medical issue, which is covered in [Why Is My Dog Drinking So Much Water?](/knowledge/veterinary-medicine/symptom-guides/why-is-my-dog-drinking-so-much-water). A dog that refuses water needs a different approach, described in [Dog Not Drinking Water: Causes and How to Encourage Hydration](/knowledge/veterinary-medicine/digestive-and-urinary-care/dog-not-drinking-water-causes). ## Soaking Schedule by Life Stage and Situation | Tortoise or situation | Soak frequency | Soak length | Notes | |---|---|---|---| | Hatchling or juvenile | Daily | 10 to 15 minutes | Small bodies lose water faster. Watch for flipping. | | Healthy adult, indoor | 2 to 3 times per week | 15 to 30 minutes | Keep a water dish available every day. | | Healthy adult, outdoor in hot weather | Daily or every other day | 15 to 30 minutes | Provide shade and a shallow ground-level water source. | | Tortoise recovering from illness | As directed by your veterinarian | As directed | Follow the vet's plan, not a general schedule. | | Tortoise with thick urates or hard stool | 3 to 4 times per week | 20 to 30 minutes | If it does not improve in a few days, call your vet. | | Brumation (winter rest) | Usually reduced or stopped | Not applicable | Follow species-specific guidance from your veterinarian. | This table is a general guide. Species, size, indoor humidity, and health status all change the plan. Your veterinarian can tailor it. ## Signs That Something Is Wrong ### Early dehydration signs - Sunken or dull eyes - Loose, wrinkled skin around the neck and legs - Dry, flaky skin that does not improve with soaks - Thick, chalky, or gritty urates (the white part of the waste) - Reduced appetite - Lethargy or less interest in moving around - Weight loss ### Signs that need same-day veterinary care - The tortoise has not eaten or drunk for several days - Urates are hard, paste-like, or absent - The tortoise is weak, unsteady, or cannot right itself - The eyes are deeply sunken and the skin does not spring back - The tortoise has diarrhea, vomiting, or a discharge from the nose or mouth ### Signs that need emergency care now - The tortoise is limp, unresponsive, or cannot lift its head - The tortoise has been flipped on its back for an unknown period - There is blood in the stool or urine - The tortoise is straining to pass stool or urates with no result - The tortoise was exposed to extreme heat or cold Dehydration is not just a comfort issue. In a study of a terrestrial lizard, limited drinking water reduced maximum running speed more than it reduced endurance, and the effect was tied to loss of body condition [1]. A dehydrated tortoise is a slower, weaker tortoise that is less able to escape hazards, thermoregulate, or recover from illness. ## Common Mistakes Owners Make **Mistake 1: Assuming the shell absorbs water.** It does not. A tortoise that never drinks is not hydrating through its shell. **Mistake 2: Using a deep water bowl.** Deep bowls cause drowning and flipping, especially in hatchlings. Use a shallow saucer. **Mistake 3: Skipping the water dish because you soak.** Soaking helps, but it does not replace free access to drinking water. Reptiles that depend on drinking water cannot make up the difference through food alone [2][3]. **Mistake 4: Soaking a sick tortoise for hours instead of calling the vet.** Long soaks do not fix organ failure, infection, or impaction. If your tortoise looks unwell, a longer bath delays treatment. **Mistake 5: Ignoring the water dish because the substrate is damp.** Humidity and drinking water are separate needs. You can have one without the other. **Mistake 6: Offering water only in the morning.** Tortoises drink at different times. Keep water available all day. **Mistake 7: Using chlorinated tap water without checking.** Many tortoises do fine with tap water, but if your area has very hard or heavily treated water, ask your veterinarian what is best for your species. ## Supplies and Setup That Matter for Hydration **Water dish.** Shallow, wide, and heavy enough not to tip. Sink it into the substrate. Clean it daily. **Soaking tub.** A plastic storage bin with straight sides works well. Line the bottom with a towel for grip if the tortoise slips. **Substrate.** Choose a substrate that holds some humidity without staying soggy. Soggy substrate causes shell rot. Dry substrate causes dehydration and poor shedding. **Humidity hide.** A hide box with damp sphagnum moss gives the tortoise a humid microclimate. This supports shell health and shedding. It does not replace drinking. **Thermometer and hygrometer.** Measure temperature and humidity at both the warm and cool ends of the enclosure. A tortoise that is too hot loses water faster. **Scale.** Weigh your tortoise monthly. A steady drop in weight is one of the earliest signs of a hydration or health problem. **UVB lighting and calcium.** These support shell and bone health. A tortoise with weak bones may struggle to move to its water dish. Diet matters too. Tortoises are herbivores and need plant material to keep their gut working properly, and microbial fermentation of plant fiber is a major nutrient source for them [4]. A tortoise on a poor diet may not eat or drink normally. Small tortoises on pelleted diets may need to be fed more often than larger ones [4]. Ask your veterinarian for a diet plan that matches your species and size. If you also keep cats, increased drinking can signal a medical problem in them too. See [Why Is My Cat Drinking So Much Water?](/knowledge/veterinary-medicine/symptom-guides/why-is-my-cat-drinking-so-much-water) for the feline version of this warning sign. ## Limitations and When to Contact a Veterinarian This article gives general guidance for common pet tortoise species. It cannot tell you what is wrong with your individual tortoise. Every case needs a veterinarian who can examine the animal, check its weight and hydration status, and run tests if needed. **Call your veterinarian the same day if:** - Your tortoise has not eaten or drunk for 2 to 3 days - Urates are thick, gritty, or absent - The eyes look sunken or the skin stays wrinkled after a soak - Your tortoise is losing weight - You see diarrhea, nasal discharge, or abnormal breathing **Go to an emergency clinic now if:** - Your tortoise is limp, unresponsive, or cannot hold its head up - It has been flipped on its back for an unknown time - It is straining to pass stool or urates with no result - It was exposed to extreme heat, cold, or a toxin **Schedule a routine visit if:** - You are not sure how often to soak your species - You want help setting up humidity, lighting, or diet - Your tortoise is new to you and has never had a wellness exam For a tortoise that is eating but not drinking, or drinking but not eating, the pattern matters. A veterinarian can tell the difference between a behavioral quirk and a medical problem. If you want a sense of how fluid intake is tracked in other pets, the [Dog Water Intake Calculator: Is Your Dog Hydrated?](/knowledge/veterinary-medicine/wellness/dog-water-intake-calculator) shows how owners monitor intake in dogs, though tortoise hydration is assessed differently. ## Frequently Asked Questions ### Do tortoises drink water? Yes. Tortoises drink fresh water from a dish or shallow pool. They do not absorb meaningful water through the shell, so drinking is their main way to take in water. ### Do turtles drink water? Yes, turtles drink water too, and most aquatic turtles spend their lives in it. A turtle that lives in water still needs clean, fresh water to drink, and a basking area to dry off. ### Do tortoises absorb water? Not through the shell. Some water can move into the body through the cloaca during a soak, which is one reason soaking helps. It does not replace drinking from a dish. ### Do tortoises go in water? Some species wade and soak often, and others avoid water except to drink. Either way, every tortoise needs a shallow water source it can reach safely. ### Do tortoises drink a lot of water? Most tortoises drink modest amounts compared with mammals of similar size. The amount varies with species, diet, temperature, and humidity. What matters more than volume is that water is always available and that your tortoise is drinking and passing normal urates. ## Related Articles - [Why Is My Dog Drinking So Much Water?](/knowledge/veterinary-medicine/symptom-guides/why-is-my-dog-drinking-so-much-water) - [Dog Not Drinking Water: Causes and How to Encourage Hydration](/knowledge/veterinary-medicine/digestive-and-urinary-care/dog-not-drinking-water-causes) - [Dog Water Intake Calculator: Is Your Dog Hydrated?](/knowledge/veterinary-medicine/wellness/dog-water-intake-calculator) - [Why Is My Cat Drinking So Much Water?](/knowledge/veterinary-medicine/symptom-guides/why-is-my-cat-drinking-so-much-water) - [Dog Not Eating but Drinking Water: What to Do](/knowledge/veterinary-medicine/vet-visit-decisions/dog-not-eating-but-drinking-water) - [Tortoise Post-Hibernation Anorexia: Evaluation, Fluid Support, and Refeeding](/knowledge/veterinary-medicine/reptile-care/tortoise-post-hibernation-anorexia-evaluation-fluid-support-refeeding) ## References 1. [Dehydration alters sprint speed capacity more than maximal endurance in a terrestrial lizard](https://pubmed.ncbi.nlm.nih.gov/41132143/). The Journal of experimental biology, 2025. 2. [Prey consumption does not restore hydration state but mitigates the energetic costs of water deprivation in an insectivorous lizard](https://pubmed.ncbi.nlm.nih.gov/37577990/). The Journal of experimental biology, 2023. 3. [Rattlesnakes Must Drink: Meal Consumption Does Not Improve Hydration State](https://pubmed.ncbi.nlm.nih.gov/31135328/). Physiological and biochemical zoology : PBZ, 2019. 4. [Nutrition in Tortoises - Management and Nutrition](https://www.merckvetmanual.com/management-and-nutrition/nutrition-exotic-and-zoo-animals/nutrition-in-tortoises). Merck Veterinary Manual. ## Further Reading - [Merck Veterinary Manual: Reptiles](https://www.merckvetmanual.com/all-other-pets/reptiles)