West African Mud Turtle (Pelusios castaneus) Care Sheet
The West African Mud Turtle is a medium-sized freshwater sideneck turtle native to western and central Africa. Also known as the West African Side-necked Turtle, it belongs to the African hinged terrapin genus Pelusios.
Unlike turtles that withdraw their head directly backwards into the shell, Pelusios castaneus bends its neck sideways beneath the edge of the carapace. It also possesses a hinged plastron, which provides additional protection to the withdrawn head and limbs.
West African Mud Turtles are hardy and adaptable when maintained correctly, but they should not be confused with the commonly sold African Helmeted Turtles of the genus Pelomedusa. They require warm, spacious aquatic accommodation, excellent filtration, appropriate UVB exposure, a completely dry basking area and a varied diet.
Quick Facts
Scientific name: Pelusios castaneus
Common names: West African Mud Turtle, West African Side-necked Turtle, West African Hinged Terrapin
Family: Pelomedusidae
Origin: Western and parts of Central Africa
Adult size: Commonly approximately 20–25 cm shell length
Lifespan: Potentially 30–50+ years
Diet: Omnivorous with strong carnivorous tendencies
Activity: Primarily aquatic
Lifestyle: Freshwater aquatic/semi-aquatic turtle
Experience level: Intermediate
Temperament: Alert and food-motivated; capable of defensive biting
Natural Distribution
The West African Mud Turtle occurs across parts of western and central Africa.
Its range includes freshwater habitats within several countries of the region.
Because animals may enter captivity without precise locality information, any reliable information concerning geographical origin should be retained.
Natural Habitat
Pelusios castaneus inhabits a variety of freshwater environments.
Typical habitats include:
- Ponds
- Marshes
- Swamps
- Lagoons
- Slow-moving rivers
- Streams
- Floodplain wetlands
- Seasonal pools
They generally favour relatively calm water containing plenty of cover and opportunities to leave the water.
Appearance
West African Mud Turtles generally possess:
- Oval carapace
- Brown, olive or dark shell colouration
- Relatively broad head
- Strong limbs
- Webbed feet
- Hinged plastron
- Long flexible neck
Colour and pattern can vary considerably between individuals.
Adults often have a relatively plain appearance compared with brightly patterned aquatic turtles.
Sideneck Anatomy
West African Mud Turtles belong to the turtle group known as Pleurodira.
Rather than retracting the neck directly backwards, the turtle:
- Bends the neck sideways
- Folds it alongside the body
- Tucks the head beneath the edge of the shell
This characteristic is shared with other African sideneck turtles.
Hinged Plastron
One important characteristic of Pelusios is the presence of a hinged plastron.
The movable portion of the lower shell provides additional protection when the turtle withdraws.
This is one useful distinction between Pelusios and African Helmeted Turtles belonging to the genus Pelomedusa.
Pelusios vs Pelomedusa
West African Mud Turtles are sometimes confused with African Helmeted Turtles.
They are not the same animal.
West African Mud Turtle:
Pelusios castaneus
African Helmeted Turtles:
Pelomedusa spp.
Important differences include:
- Shell structure
- Plastral hinging
- Head morphology
- Species distribution
- Natural history
Correct identification is important before breeding or establishing species-specific husbandry.
Adult Size
West African Mud Turtles commonly reach approximately:
20–25 cm (8–10 in) shell length
Individual size varies according to:
- Sex
- Genetics
- Geographical origin
- Nutrition
- Health
An adult is therefore substantially larger than the small juveniles sometimes encountered in the pet trade.
Lifespan
West African Mud Turtles can potentially live for several decades.
A well-maintained animal should be regarded as a:
30–50+ year potential commitment
Long-term accommodation and veterinary care should be considered before acquisition.
Housing
West African Mud Turtles require spacious aquatic accommodation.
A suitable enclosure should provide:
- Large aquatic area
- Appropriate water depth
- Completely dry basking area
- Powerful filtration
- Heat
- UVB lighting
- Underwater resting locations
- Hiding areas
- Environmental enrichment
A small plastic turtle bowl is completely unsuitable as permanent housing.
Enclosure Size
For a single adult, an enclosure approximately:
120 cm in length or larger
provides a useful general starting point.
Larger accommodation is preferable.
The turtle should have enough room to:
- Swim
- Walk along the bottom
- Turn comfortably
- Explore
- Forage
- Surface easily
- Bask
Water Depth
Healthy adults can use reasonably deep water.
However, the enclosure should include numerous easy resting and surface-access points.
Useful structures include:
- Driftwood
- Submerged platforms
- Large secure rocks
- Branches
- Plants
Young juveniles should initially have particularly easy access to the surface.
Shallow Areas
Providing different water depths creates a more useful environment than maintaining one uniform depth.
Include:
- Shallow resting areas
- Moderate-depth sections
- Deeper swimming areas
This allows the turtle to choose where it spends its time.
Surface Access
All turtles must breathe atmospheric air.
The turtle should be able to reach the surface easily from several locations.
Avoid underwater structures that could:
- Trap the turtle
- Collapse
- Pin the animal
- Block access to the surface
Water Temperature
West African Mud Turtles require warm water.
A useful general range for healthy adults is approximately:
24–27°C
Young juveniles may benefit from slightly warmer and particularly stable conditions.
Temperature should be monitored using an accurate thermometer.
Water Heating
Indoor accommodation will commonly require an aquarium heater.
The heater should be:
- Thermostatically controlled
- Appropriately rated
- Securely installed
- Protected by a heater guard
Turtles can damage exposed glass heaters.
Basking Area
Provide a completely dry basking platform.
The turtle should be able to leave the water and dry its:
- Carapace
- Plastron
- Limbs
The platform should be:
- Stable
- Non-slip
- Easy to access
- Large enough for the entire turtle
Basking Temperature
A useful basking surface temperature is approximately:
30–33°C
Measure the actual surface temperature where the turtle sits.
The turtle must always be able to move away from the heat.
UVB Lighting
Appropriate UVB exposure should be provided.
UVB supports:
- Vitamin D3 production
- Calcium metabolism
- Healthy bones
- Shell development
Use a reputable reptile UVB lamp appropriate for the enclosure.
UVB should not pass through glass or plastic before reaching the turtle.
UVB Gradient
Provide a range of exposure.
The enclosure should contain:
- Effective UVB at the basking area
- Partial shade
- Underwater cover
- Areas away from direct UVB
The turtle should be able to regulate its own exposure.
Lighting
Provide a consistent day/night cycle.
Approximately:
10–12 hours of light daily
provides a useful general starting point.
Visible enclosure lighting should normally be switched off overnight.
Filtration
West African Mud Turtles can produce substantial amounts of waste.
Powerful filtration is essential.
Suitable systems include:
- External canister filters
- Sumps
- High-capacity internal filtration
- Pond-style filtration for larger systems
Filtration should provide:
- Mechanical filtration
- Biological filtration
- Appropriate circulation
Filter Capacity
Turtles create a considerably greater biological load than a lightly stocked fish aquarium.
Choose generous filtration capacity.
Effective filtration helps remove:
- Faecal material
- Food debris
- Suspended waste
It also provides biological media for beneficial bacteria.
Water Quality
Good water quality is essential for healthy:
- Skin
- Eyes
- Shell
- General condition
Poor water conditions can contribute to:
- Shell infections
- Skin irritation
- Eye problems
- Excessive bacterial growth
Regular partial water changes remain necessary.
Water Testing
Keepers should understand the aquarium nitrogen cycle.
Monitor:
- Ammonia
- Nitrite
- Nitrate
- pH
A mature biological filter should prevent dangerous accumulation of ammonia and nitrite.
Clear water is not necessarily safe water.
Substrate
Suitable aquatic substrate options include:
- Fine sand
- Bare-bottom enclosure
- Large smooth stones too large to swallow
Fine sand can provide a naturalistic environment and encourage exploratory behaviour.
Avoid small aquarium gravel that could potentially be swallowed.
Driftwood
Secure driftwood can provide:
- Resting areas
- Climbing opportunities
- Surface access
- Hiding places
- Visual barriers
All wood must be positioned securely.
Avoid creating underwater spaces where the turtle could become trapped.
Plants
Aquatic plants can provide:
- Cover
- Shade
- Resting locations
- Environmental enrichment
Turtles may:
- Dig plants up
- Bite vegetation
- Crush plants
Only turtle-safe species should be used.
Hides
Provide several secure hiding locations.
Suitable options include:
- Driftwood
- Dense vegetation
- Large caves
- Overhanging structures
Any enclosed hide must be large enough for the turtle to enter and exit safely.
Terrestrial Access
Although primarily aquatic, West African Mud Turtles should have reliable access to a substantial dry area.
A larger land section can provide opportunities for:
- Basking
- Resting
- Exploration
- Nesting in adult females
Females require appropriate diggable nesting substrate when reproductively active.
Environmental Enrichment
West African Mud Turtles benefit from environmental complexity.
Useful enrichment includes:
- Different water depths
- Driftwood
- Plants
- Secure rocks
- Hidden food
- Submerged platforms
- Varied feeding locations
- Dry exploration areas
The enclosure should provide choices rather than simply open water.
Diet
West African Mud Turtles are opportunistic omnivores with strong carnivorous tendencies.
Natural foods may include:
- Aquatic insects
- Worms
- Snails
- Molluscs
- Crustaceans
- Fish
- Amphibians
- Carrion
- Other small aquatic animals
- Plant material
Captive diets should provide appropriate variety.
Commercial Turtle Pellets
A high-quality complete aquatic-turtle pellet can form a useful foundation of the captive diet.
Choose a reputable food formulated specifically for aquatic turtles.
Pellets should be combined with appropriate whole and fresh foods.
Earthworms
Earthworms are readily accepted by many individuals.
They can provide:
- Dietary variety
- Natural feeding behaviour
- Environmental enrichment
Use worms from safe sources free from pesticides, herbicides and other contaminants.
Snails
Appropriately sourced snails can be an excellent dietary component.
They provide:
- Whole-prey nutrition
- Calcium-containing shell material
- Natural foraging opportunities
Avoid collecting snails from polluted or chemically treated environments.
Aquatic Invertebrates
Suitable foods can include appropriately sized:
- Freshwater shrimp
- Crustaceans
- Aquatic insect larvae
- Other safe aquatic invertebrates
Variety is preferable to reliance upon a single feeder species.
Fish
Appropriate whole freshwater fish may occasionally form part of the diet.
Whole fish provide:
- Bone
- Organs
- Muscle
- Connective tissue
- Micronutrients
Avoid relying exclusively on fish.
Plant Foods
Plant material can be offered as part of a varied diet.
Suitable options may include:
- Aquatic vegetation
- Dandelion greens
- Endive
- Escarole
- Other appropriate leafy vegetation
Individual acceptance varies.
Calcium
Adequate calcium is essential.
Calcium may be supplied through:
- Balanced turtle pellets
- Whole prey
- Snails
- Cuttlebone where suitable
- Appropriate supplementation
Correct UVB exposure supports normal calcium metabolism.
Foods to Avoid
Avoid routinely feeding:
- Bread
- Dairy products
- Processed human food
- Seasoned meat
- Dog food as a staple
- Cat food as a staple
- Excessive fatty meat
- Dried shrimp as the sole diet
A varied diet is essential for long-term health.
Feeding Frequency
Juveniles generally require smaller meals more frequently than adults.
Healthy adults can generally receive appropriately sized meals several times each week.
Adjust feeding according to:
- Age
- Size
- Activity
- Body condition
- Temperature
- Health
Avoid Overfeeding
West African Mud Turtles can become extremely enthusiastic at feeding time.
A turtle rushing toward the keeper does not necessarily need feeding.
Overfeeding can contribute to:
- Obesity
- Excessive growth
- Reduced activity
- Poor water quality
Monitor body condition carefully.
Feeding Enrichment
Food can occasionally be:
- Hidden near driftwood
- Distributed among plants
- Offered at different depths
- Placed in different areas of the enclosure
This encourages natural searching and foraging behaviour.
Remove uneaten food before it deteriorates.
Behaviour
West African Mud Turtles can be active and inquisitive.
Typical behaviour includes:
- Swimming
- Bottom walking
- Foraging
- Exploring
- Basking
- Resting beneath cover
- Investigating food
Many captive individuals quickly learn feeding routines.
Temperament
Individual temperament varies.
Some animals become relatively confident around their keeper.
Others remain:
- Secretive
- Shy
- Defensive
A frightened turtle may:
- Withdraw
- Struggle
- Scratch
- Bite
Bite Risk
West African Mud Turtles possess strong jaws and a flexible neck.
A defensive bite can be painful.
Never:
- Tease the turtle
- Encourage defensive strikes
- Put fingers close to the mouth
- Hand-feed unnecessarily
Remember that a sideneck turtle can reach surprisingly far sideways.
Handling
Routine recreational handling is unnecessary.
Handling should primarily occur for:
- Health checks
- Veterinary treatment
- Transportation
- Necessary enclosure maintenance
Support the turtle securely.
Never lift a turtle by its tail.
Hygiene
West African Mud Turtles can carry Salmonella and other microorganisms without appearing ill.
Wash hands thoroughly after:
- Handling the turtle
- Touching enclosure water
- Cleaning filtration
- Handling substrate
- Preparing food
Avoid cleaning turtle equipment in human food-preparation areas.
Sexing
Adult males and females can generally be distinguished using several characteristics.
Males typically possess:
- Longer tails
- Thicker tail bases
- Cloacal openings positioned farther along the tail
Females generally possess:
- Shorter tails
- More substantial bodies when mature
Young juveniles may be difficult to sex reliably.
Social Housing
West African Mud Turtles do not require companionship.
Keeping multiple turtles together can result in:
- Biting
- Food competition
- Male aggression
- Mating harassment
- Chronic stress
Individual housing is often safest.
Anyone attempting group housing should have separate accommodation immediately available.
Housing With Other Species
Mixed-species housing is generally unnecessary.
Different African turtle species may have different:
- Temperatures
- Behaviour
- Adult sizes
- Dietary requirements
- Habitat preferences
Mixing species also increases the risk of:
- Aggression
- Disease transmission
- Incorrect breeding
Separate housing is generally preferable.
Breeding
Breeding should only be undertaken with correctly identified healthy animals.
Before breeding, establish:
- Correct species
- Sex
- Provenance where possible
- Appropriate nesting facilities
- Incubation equipment
- Responsible plans for offspring
Avoid breeding unidentified African sideneck turtles together.
Nesting
Females require access to suitable terrestrial nesting substrate.
A nesting area should provide:
- Deep diggable substrate
- Appropriate moisture
- Warmth
- Privacy
- Secure access
The female should be able to select a nesting position naturally.
Females Without Males
Females may produce infertile eggs even when no male is currently present.
Possible signs include:
- Restlessness
- Digging
- Attempts to escape
- Reduced appetite
- Increased terrestrial activity
Suitable nesting opportunities should be available when necessary.
Egg Retention
Egg retention can become a serious veterinary emergency.
Possible signs include:
- Persistent unsuccessful nesting
- Straining
- Weakness
- Reduced appetite
- Abnormal posture
- Significant behavioural changes
Suspected egg retention requires prompt veterinary assessment.
Health
Potential health concerns include:
- Shell infections
- Skin infections
- Respiratory disease
- Eye problems
- Nutritional deficiencies
- Metabolic bone disease
- Parasites
- Trauma
- Obesity
- Egg retention
Good husbandry prevents many commonly encountered health problems.
Warning Signs
Seek veterinary advice if the turtle develops:
- Persistent refusal to eat
- Unexplained weight loss
- Swollen or closed eyes
- Nasal discharge
- Wheezing
- Open-mouth breathing
- Abnormal floating
- Difficulty diving
- Soft shell
- Shell lesions
- Foul-smelling wounds
- Persistent lethargy
- Significant behavioural changes
Veterinary care should ideally be provided by a clinician experienced with reptiles and chelonians.
Shell Health
A healthy shell should generally remain:
- Firm
- Intact
- Free from deep pits
- Free from bleeding
- Free from foul-smelling lesions
- Free from significant soft areas
Persistent abnormalities require veterinary investigation.
Respiratory Disease
Possible symptoms include:
- Nasal bubbles
- Wheezing
- Open-mouth breathing
- Reduced appetite
- Abnormal buoyancy
- Difficulty diving
- Lethargy
Respiratory symptoms require veterinary assessment.
Parasites
Wild-caught or imported turtles can carry internal or external parasites.
Possible signs include:
- Weight loss
- Poor body condition
- Abnormal faeces
- Reduced appetite
- Persistent lethargy
Veterinary testing is preferable to administering medication without a diagnosis.
Quarantine
New turtles should be quarantined away from established reptiles.
Monitor:
- Feeding
- Weight
- Faeces
- Shell condition
- Skin
- Respiratory health
- General behaviour
Use separate equipment for quarantined animals.
Outdoor Housing
Outdoor accommodation may be possible in suitably warm climates.
A secure outdoor enclosure should provide:
- Appropriate water temperatures
- Swimming space
- Dry basking areas
- Shade
- Hiding locations
- Predator protection
- Escape prevention
In cooler climates, year-round outdoor housing is generally inappropriate.
Cold Temperatures
West African Mud Turtles originate from warm climates.
They should not be managed as cold-tolerant temperate pond turtles.
Prolonged inappropriate cooling can compromise:
- Digestion
- Immune function
- Activity
- General health
Stable appropriate temperatures should be maintained.
Brumation
Routine cold brumation is not appropriate for West African Mud Turtles.
They should not be subjected to refrigerator-style brumation or prolonged cold winter conditions.
Seasonal management should reflect the ecology of the species rather than husbandry practices used for temperate turtles.
Captive-Bred Animals
Captive-bred animals should be preferred wherever available.
Before acquisition, ask about:
- Species identification
- Parentage
- Captive-bred status
- Hatch date
- Feeding history
- Health history
- Geographical provenance where known
Retain this information throughout the turtle’s life.
Wild-Caught Animals
Wild-caught turtles can present additional concerns including:
- Parasites
- Injuries
- Dehydration
- Stress
- Unknown age
- Uncertain locality
- Uncertain health history
Responsible captive breeding should be supported whenever possible.
Correct Identification
African sideneck turtles are sometimes sold under inaccurate or overly broad common names.
Before acquiring an animal, establish whether it is:
- Pelusios castaneus
- Another Pelusios species
- A Pelomedusa species
Photographs, provenance and breeder information should be retained.
Correct identification is especially important before breeding.
Never Release Captive Turtles
Never release a captive West African Mud Turtle into local waterways.
Release can:
- Introduce a non-native species
- Spread disease
- Harm native wildlife
- Cause suffering or death of the turtle
- Violate wildlife legislation
If an owner can no longer provide care, responsible rehoming should be arranged.
Legal Considerations
Regulations vary between countries and regions.
Restrictions may apply to:
- Ownership
- Sale
- Breeding
- Transport
- Import
- Export
Always verify current legislation before acquiring or transferring an animal.
Retain any relevant legal documentation.
Responsible Ownership
Before obtaining a West African Mud Turtle, consider:
- Adult size
- Potential lifespan of several decades
- Large aquatic enclosure requirements
- Powerful filtration
- Continuous heating
- UVB replacement
- Electricity costs
- Veterinary expenses
- Holiday care
- Correct species identification
- Long-term responsibility
The purchase price of a turtle is usually only a small fraction of the cost of providing appropriate lifelong care.
Summary
The West African Mud Turtle (Pelusios castaneus) is a fascinating African freshwater sideneck distinguished by its sideways neck retraction and hinged plastron.
It should not be confused with African Helmeted Turtles of the genus Pelomedusa. Correct identification is particularly important for breeding, record keeping and responsible captive management.
Successful husbandry requires spacious heated aquatic accommodation, excellent water quality, powerful filtration, easy access to the surface, a completely dry basking area, appropriate UVB exposure, environmental enrichment and a varied omnivorous diet.
As a tropical African turtle, Pelusios castaneus should not undergo routine cold brumation.
Although relatively manageable compared with giant aquatic turtle species, adults still require substantial accommodation and may potentially live for several decades.
IMPORTANT INFORMATION
This care sheet provides general husbandry guidance and does not replace professional veterinary advice, current species-specific research or applicable wildlife legislation.
Individual requirements may vary according to age, sex, health, geographical provenance and environmental conditions.
Correctly identify African sideneck turtles before breeding or transferring them.
If you are concerned about your turtle’s health, consult a veterinarian experienced with reptiles and chelonians.
Information correct at the date of publication.
reptilecommunity.com | Revised: August 2026