Turtles
Common musk turtle care guide
Sternotherus odoratus
A small (4 in) bottom-walking turtle; a good fit for a modest aquarium.
Aquatic — water volume and floor area first
New to reptiles? Check your keeper level first →Common musk turtle enclosure size
Aquatic — water volume and floor area first. An adult common musk turtle should live in at least 30" L × 12" W × 12" H; we build toward 36" L × 18" W × 18" H (3 × 1.5 × 1.5 ft, roughly 4.5 sq ft of floor and about a 50-gallon glass equivalent).
- Hatchling / baby
- 12" L × 12" W × 12" H recommended · min 12" L × 12" W × 12" H
- Juvenile
- 24" L × 12" W × 12" H recommended · min 18" L × 12" W × 12" H
- Adult
- 36" L × 18" W × 18" H recommended · min 30" L × 12" W × 12" H
Temperature and heating
Halogen over the dock; submersible heater with guard.
- Basking / warm surface
- 85–90°F at the basking dock
- Warm side (ambient)
- Water 72–78°F
- Cool side (ambient)
- —
- Night
- Water no lower than 68°F
Lighting and UVB
UVB: UVB required (T5 HO 6% or ShadeDweller). Run lights on a 12 hours on, 12 hours off photoperiod, on a timer, and replace UVB bulbs on the manufacturer's schedule even while they still emit visible light.
Humidity
Target Not critical — aquatic. The water provides humidity; keep the basking dock fully dry.
Substrate and depth
Bare bottom or large river rock (too big to swallow). Depth: —.
Water and filtration
- Water depth
- Shallow-to-moderate with easy climbing paths — they are weak swimmers
- Filtration
- Canister filter rated 2–3x the water volume, plus a 25% water change weekly
- Basking dock
- A dry, easily climbed dock under the heat and UVB lamps
Diet and feeding
Turtle pellets plus insects, worms, snails and fish.
Enclosure tips and furnishing
- Hides on both the warm and cool sides
- Clean water available at all times
- Clutter — cork, leaf litter, plants — for cover
Build list
- Enclosure at adult size — Buy for the adult footprint to avoid repeated upgrades.
- Digital thermostat — Every heat source must run through a thermostat — unregulated heat burns animals.
- Two digital probe thermometers + hygrometer — Read the warm side, cool side and humidity directly.
Common musk turtle FAQ
How big should an adult Common musk turtle enclosure be?
At least 30" L × 12" W × 12" H, and we recommend building to 36" L × 18" W × 18" H — about 3 × 1.5 × 1.5 ft, or a 50-gallon glass equivalent. Aquatic — water volume and floor area first.
What temperatures does a Common musk turtle need?
Basking or warm surface 85–90°F at the basking dock, warm side Water 72–78°F, cool side —, night Water no lower than 68°F. Halogen over the dock; submersible heater with guard.
Does a Common musk turtle need UVB?
UVB required (T5 HO 6% or ShadeDweller). Photoperiod: 12 hours on, 12 hours off.
What humidity does a Common musk turtle need?
Not critical — aquatic. The water provides humidity; keep the basking dock fully dry.
What substrate is best for a Common musk turtle?
Bare bottom or large river rock (too big to swallow), at a depth of —.
How big does a Common musk turtle enclosure need to be for a hatchling?
Hatchling / baby: 12" L × 12" W × 12" H recommended, minimum 12" L × 12" W × 12" H. Scale up to the adult footprint as the animal grows.
Sources
Put this guide to work
Apply these targets to your own common musk turtle record, then log feedings, sheds and weights against them.