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ReptileFreshwaterSemi-aquaticMedium

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Eastern Mud Turtle

Kinosternon subrubrum

A small, aquatic turtle native to the eastern United States, known for its dark shell, active walking on muddy bottoms, and requirement for dry basking sites.

Family
Kinosternidae
Origin
Eastern and southern United States.
Origin
North America
Tank use
Used in 0 tanks

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Species challenges
Water Temperature

10 °C - 28 °C

pH Value

6.5 - 8

Water type

Freshwater / Semi-aquatic

Basking spot

32 °C

UVB

Medium

Species description

Geographical Origin and Habitat: Found throughout the eastern and southern United States. Inhabits shallow freshwater marshes, muddy ponds, slow-moving creeks, and wet meadows.

Taxonomy and Genetics: Belongs to the Kinosternidae family, genus Kinosternon. Features a double-hinged plastron allowing it to partially close its shell for protection.

Behavior and Habits: Semi-aquatic but a relatively poor swimmer; prefers walking on the bottom rather than swimming. Spends significant time on land and hibernates in winter.

Morphology: Small turtle, shell length ranges from 8.0 to 12.0 cm. Shell color is dark brown to black. Males have longer, thicker tails with a claw-like tip.

Care, breeding and tankmates

Terrarium Setup: Requires a tank of at least 80x40x40 cm. Water depth should be shallow (15-20 cm) to allow the turtle to reach the surface while resting on the bottom. Provide a dry land area.

Lighting and Heating: Basking zone requires a spot lamp at 30-32°C and a medium-intensity UVB source (5.0). Water temperature should be maintained between 20°C and 24°C.

Humidity and Hydration: Aquatic species; air humidity is naturally maintained by water evaporation. Efficient filtration is mandatory to keep the water pristine.

Feeding and Supplementation: Primarily carnivorous. Feed live minnows, earthworms, snails, insects, and high-quality commercial pellets. Supplement with calcium.

Compatibility: Territorial and aggressive. Individual housing is strongly recommended to prevent biting and injury. Cohabitation is highly risky.

Health and Common Diseases: Healthy turtles benefit from winter hibernation at 4-10°C. Prone to shell rot and skin infections if water quality is poor or basking site is ignored.

Reptile profile

Diet
Onnivoro
Humidity
60 % - 80 %
Ambient temperature
24 °C
Basking spot
32 °C
UVB
Medium
Adult size
12 cm
Minimum enclosure
150 L

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Last updated: 06/13/2026