Map turtle · Graptemys spp.

What makes the map turtle remarkable?

Adult map turtle basking on a river log with its complete olive shell, fine yellow contour lines, low keel, yellow-striped head, webbed feet, and tail in view.

Map turtles are river specialists traced with fine yellow lines like contour marks.

This is a genus overview.

Before you decide

Could a map turtle thrive in your home?

Picture the full-grown animal, the permanent enclosure, and the ordinary care you would still be happy to give years from now.

Adult size Roughly 10–27 cm (4–11 in), with large differences by species and sex Begin with the adult body, not the hatchling

Their home At least 300–450 L / 80–120 US gal for one adult, after exact species and sex are known Set aside the permanent footprint before adoption

Time together Often 30–50 years Plan around the longer end of the range

Their rhythm A daytime swimmer or bottom-walker that basks, rests, and forages House alone

The honest fit

Would their everyday rhythm suit you?

Think about an ordinary week, including the days when you are tired, busy, or away from home.

Life together may suit you if…

You want to watch natural swimming, walking, and basking
You can house the adult rather than the shop-sized juvenile
You enjoy filtration, water testing, and heavy maintenance
You have a reptile veterinarian and lawful captive-bred source

Pause if…

You expect a bowl or small aquarium to be enough
You cannot lift water or service oversized filtration
You want a turtle to handle often
Do not buy under the label map turtle alone; confirm exact species, sex, and adult size.

A comfortable home

Build the home around their choices.

Build a large escape-proof aquatic system with deep clean moving water with strong rests and a completely dry basking dock, an easy-climb dock that dries the whole shell, guarded heat, measured UVB, redundant temperature checks, and filtration rated well beyond the actual water volume. Do not buy under the label map turtle alone; confirm exact species, sex, and adult size.

Basking zone a completely dry shell-sized platform around 31–34°C (88–93°F)

Measure where the animal actually rests

Cool end water maintained around 23–26°C (73–79°F)

A real retreat from the warm side

Humidity Open air above the water should stay well ventilated so the shell dries fully while basking

Use a digital hygrometer and watch ventilation

UVB Measured moderate UVB across the whole dry dock, with aquatic shade nearby

Build light and shade as a gradient

The rhythm

What an ordinary week asks of you.

Morning

Open the pond

Check water temperature and clarity, basking heat, UVB, dock access, eyes, nose, shell, skin, swimming, and guards.

Feeding time

Serve a measured rotation

Offer species-appropriate food, watch the turtle eat and move, then remove every leftover.

Water day

Service the life-support system

Test water, change an appropriate volume, clean mechanical media, preserve biological media, scrub the dock, and inspect equipment.

Care with tenderness

Learn what is normal for your map turtle.

Clear water can still be unsafe

Track temperature and water chemistry on a schedule; sight and smell do not replace testing.

The whole shell must dry

A stable easy-climb dock needs overhead heat and UVB across the turtle's complete body.

Release is never a rehoming plan

Pet turtles can spread disease, become invasive, or die outdoors. Use legal rescue and rehoming channels.

Call for warning signs

Tilted swimming, nasal bubbles, swollen eyes, soft or damaged shell, skin lesions, weight change, or appetite loss need a reptile veterinarian.

Good to know

Common questions, answered.

Open any question for a short, practical answer.

Life together

Could a map turtle suit a first-time keeper?

Maybe. Picture the full-grown animal and the care that fills an ordinary week. Would you still enjoy that life years from now?

How large do map turtles get?

Roughly 10–27 cm (4–11 in), with large differences by species and sex

How long do map turtles live?

Often 30–50 years. Individual lifespan varies, so plan around the longer end.

When are map turtles active?

A daytime swimmer or bottom-walker that basks, rests, and forages

Do map turtles enjoy handling?

Keep handling rare; support from below and keep fingers away from the head. Watch the animal's posture and movement, support the whole body, and stop before calm turns into endurance.

Can two map turtles live together?

House alone

What do map turtles eat?

Species-appropriate pellets, aquatic invertebrates, and plant foods

How large should a map turtle's enclosure be?

Start with at least 300–450 L / 80–120 US gal for one adult, after exact species and sex are known. More usable room is valuable when it creates better gradients, cover, and movement choices.

Home and health

What temperatures does a map turtle need?

Provide a completely dry shell-sized platform around 31–34°C (88–93°F), with water maintained around 23–26°C (73–79°F). Measure both where the animal actually spends time and control every heater appropriately.

Does a map turtle need UVB?

The reviewed plan calls for measured moderate UVB across the whole dry dock, with aquatic shade nearby. Fixture, reflector, mesh, distance, lamp age, and shade all change what reaches the animal.

What humidity does a map turtle need?

Open air above the water should stay well ventilated so the shell dries fully while basking. Check it with a digital hygrometer. Keep fresh air moving through the enclosure, and let the animal choose between damp shelter and dry ground.

What should be inside the enclosure?

What substrate works for a map turtle?

A serviceable bare or large-particle bottom with species-appropriate sand, plants, wood, land, and resting structure

What does ordinary cleaning involve?

Remove waste and leftovers, test water, service mechanical and biological filtration, and inspect eyes, nose, mouth, shell, skin, feet, appetite, dock, heaters, and guards.

What should I arrange before bringing a map turtle home?

Build and test the complete adult habitat, verify the readings over several days, identify a reptile veterinarian, check local and rental rules, and choose a responsible captive source or rescue.

Can a healthy-looking map turtle carry Salmonella?

Yes. Reptiles can carry Salmonella without looking ill, so handwashing and keeping habitat water, food, and cleaning equipment away from kitchens are part of ordinary care.

Still thinking about map turtles?

Put this animal beside the others on your shortlist. Then build and test the complete adult habitat before anyone comes home.

Compare reptiles

Sources and care boundaries

Exact targets depend on the measured location, equipment, animal, and veterinary context. This profile keeps source disagreements visible instead of blending them into one number.