Tortoise Care: Diet, Substrate, and Enclosure Setup for a Long-Lived Tortoise

Tortoises Are Not Aquatic — But Water Still Matters

Unlike aquatic turtles, tortoises are entirely terrestrial — they do not swim and should not be placed in water beyond shallow soaking dishes. However, regular shallow soaks (2-3 times per week for most species, weekly for adults) are important for hydration, digestion, and waste elimination. Many tortoises drink during soaks rather than from water dishes. Soak in water no deeper than the underside of the shell, at room temperature, for 15-30 minutes. Browse our tortoise care collection for appropriate soaking dishes and habitat accessories.

Diet: High Fiber, Low Protein

Most commonly kept tortoises — Hermann's, Russian, Greek, sulcata — are primarily grazers. Their natural diet consists of grasses, weeds, and leafy greens with very high fiber and relatively low protein content. High-protein diets (including fruit, which is inappropriate for most tortoise species and causes digestive fermentation and pyramiding) cause shell deformities, kidney problems, and shortened lifespan over time. Feed primarily fresh leafy greens (dandelion greens, endive, escarole, kale, collards), and supplement with pesticide-free dried grass and hay. Calcium dusting on food 2-3 times per week is essential. Browse our reptile supplement and diet collection for calcium powder and appropriate tortoise food options.

Substrate: Deep Enough to Burrow

Tortoises burrow — it is a critical thermoregulation and security behavior that cannot be adequately expressed in shallow substrate. Minimum depth is 4-6 inches for smaller species; sulcata tortoises need 12+ inches. A mix of topsoil and play sand (60/40 or 70/30) that holds its shape when moist but drains excess water is ideal for most Mediterranean and arid-climate species. Coconut fiber and organic topsoil works well for tropical species that need higher humidity. Avoid sand alone (impaction risk), bark mulch (respiratory irritant), and reptile carpet (causes nail damage and hygiene problems).

Enclosure: Indoor and Outdoor Considerations

Tortoises kept outdoors in appropriate climates (matched to the species' native range) thrive on natural sunlight, natural grazing, and the sensory complexity of an outdoor environment. Sulcata tortoises can live in outdoor pens year-round in warm climates; they are inappropriate for cold climates. Mediterranean species like Hermanns and Greeks can be kept outdoors in temperate climates during warm months. Indoor setups should be as large as possible — a 4'x8' indoor tortoise table is the minimum for most adult small to medium tortoise species. Browse our complete tortoise and reptile care collection including substrates, UVB lighting, hide boxes, and diet essentials for the full range of tortoise species.