Common Musk Turtle Sternotherus odoratus
A small aquatic turtle topping out just over 10 cm β genuinely the one you can keep in an apartment for life. It is a poor swimmer that walks along the bottom, so the water needs to be shallow rather than deep. It releases a smell when alarmed, hence the name.
βοΈ Legal status Β· Legal to keep
Native to North America. Not CITES-listed and not a protected species in China; captive-bred animals are legal to keep. Non-native β never release it.
Check another species βKey parameters
- Lifespan
- 20-50 years
- Adult size
- 7-13 cm carapace, one of the smallest aquatic turtles
- Diet
- Carnivorous. Pellets as a base, supplemented with snails, dried shrimp, earthworms and pieces of fish
- Temperature
- Water 22-26 Β°C, basking spot 29-31 Β°C (it basks far less than a slider)
- Humidity
- Aquatic β what matters is water quality and depth. Do not set it up to slider specifications
β Suits you if
Anyone who wants an aquatic turtle but has limited space, and who wants a quiet animal that will be around for decades
π« Do not get one if
Anyone wanting a turtle to handle β musk turtles bite and release musk; anyone unable to commit for several decades
Starter equipment list
Buy all of it before the animal arrives, not after.
- Tank: 75-115 L is enough for one adult, far less than a slider needs
- Water depth: the critical item. For juveniles, no more than about 1.5-2Γ the shell length; adults can go deeper but must always be able to reach the surface by stretching up from the bottom β they swim poorly and deep water drowns them
- A gentle ramp or driftwood giving an easy route out of the water
- Filtration: low flow. Musk turtles dislike strong current
- Basking platform and UVB lamp: it rarely hauls out, but the option must exist
- Underwater hides β driftwood or terracotta, since it spends most of its time on the bottom
Most common beginner mistakes
- 1 Setting the water up like a slider tank β musk turtles are bottom-walkers, not swimmers, and deep water plus a hard-to-climb exit leads to drowning
- 2 Assuming a small turtle is a short-lived one β 20-50 years puts it in the same commitment bracket as a red-eared slider
- 3 Housing several together β they are territorial and bite each other's tails and limbs. Keep them singly
- 4 Frequent handling β the neck is long enough to reach most of its own shell, and it will bite and release musk
- 5 Feeding only dried shrimp β the resulting vitamin A deficiency shows up as eye problems
- 6 Expecting it to bask like a slider β musk turtles rarely do, and that is normal. Do not keep rebuilding the setup over it
Common illnesses
| Illness | Common cause | What you'll see |
|---|---|---|
| Drowning | Water too deep with no easy exit β a risk specific to musk turtles | Repeatedly struggling toward the surface, then sinking once exhausted |
| Shell rot | Poor water quality, never able to dry off completely | Pitting, white patches, softening or discharge on the shell, with an odour |
| Vitamin A deficiency | A monotonous diet of pellets or dried shrimp | Swollen eyelids held shut, flaking skin, reduced appetite |
| Respiratory infection | Sudden drops in water temperature, chronically inadequate heating | Floating and unable to dive, open-mouth breathing, bubbles at the nose |
| Soft shell / metabolic bone disease | Lack of UVB and calcium | Shell yields under light pressure, edges curl upward, deformed growth |
Frequently asked
Musk turtle or red-eared slider?
If you live in an apartment, the answer is almost always the musk turtle. Sliders reach 25-30 cm and need 120 cm of tank; musk turtles top out at 7-13 cm and fit in 75 L, and they are quieter. The trade-off is that they are less sociable, they bite, and they rarely bask, so they are less rewarding to watch.
How deep should the water be?
This is where musk turtle setups most often go wrong. For juveniles, keep it to about 1.5-2Γ the shell length. Adults can have more, but the turtle must always be able to stand on the bottom and lift its nose clear of the surface, with driftwood or a ramp for an easy exit. Err shallow.
Why does it smell?
When alarmed it releases a musky secretion from glands at the edge of the shell β a defensive response, and the origin of the name. Captive animals that are settled in rarely do it. Handling it less is enough to avoid the problem almost entirely.