Common Musk Turtle

Minimum for one adult is a 110 to 115 litre (29 to 30 US gallon) aquarium; 150 litres (40 gallons) or larger, roughly 90 x 45 x 40 cm, is strongly preferred and easier to keep clean. Water depth for adults should be 25 to 40 cm (10 to 16 in), and can go deeper (up to ~60 cm) only if abundant climbing structures, plants, and ledges let the turtle reach the surface easily without exhausting itself. These are weak swimmers that bottom-walk, so provide dense hardscape: smooth rocks, driftwood, cork, and live or plastic plants for climbing and hiding. Avoid gravel small enough to swallow (bare-bottom or large river stones are safest) and avoid rock caves or log gaps that could trap a turtle underwater and drown it. Include a haul-out basking platform (cork bark, floating dock, or ramp) even though they bask less than other turtles. Always fit a secure, ventilated lid: musk turtles are surprisingly good climbers and escape artists.

Primarily carnivorous. Staple: a good-quality D3-fortified aquatic turtle pellet (e.g. ReptoMin, Mazuri). Rotate in whole live/frozen protein: earthworms, snails, freshwater/ghost shrimp, crickets, dubia roaches, bloodworms, small pieces of white fish, and the occasional small crayfish. Offer a little leafy plant matter (romaine, dandelion greens, elodea/duckweed) as optional roughage, though many stinkpots ignore it. Dust food with a calcium (no-phosphorus) supplement about 3 times a week for adults and near-daily for hatchlings, plus a reptile multivitamin roughly once weekly. Feed young turtles daily; feed adults every other day, only what they finish in about 10 to 15 minutes, to prevent obesity. AVOID: a goldfish-only or feeder-fish-only diet (thiaminase in these fish causes thiamine/B1 deficiency, plus fatty liver), fatty raw red meat or chicken, dog/cat food, bread and processed human foods, anything salted or seasoned, and prey too large to swallow easily.

Water temperature 22 to 26 C (72 to 78 F) for adults (24 to 27 C for hatchlings/juveniles), held with a guarded submersible aquarium heater; do not let water sit above 28 to 29 C long-term. Basking hotspot 30 to 32 C (86 to 90 F) at the platform surface (up to about 33 C/92 F is tolerated, but the ~90 F mark is safest for this small, intermittently basking species), with surrounding air about 28 to 30 C. UVB is required for long-term shell and bone health: fit a T5 HO or compact UVB tube (roughly 5.0/UVI for adults, 10.0 for young turtles) over the basking area on a 12-hours-on / 12-hours-off cycle, replaced per manufacturer schedule (typically every 6 to 12 months). Water chemistry: aim for near-neutral to slightly alkaline, pH about 6.8 to 8.0, moderate hardness; stability and cleanliness matter more than exact numbers, so always use a dechlorinator. Filtration must be strong because these are messy carnivores: use a canister or large filter rated for at least 2x the tank's water volume, and do 25 to 30% water changes weekly.

Best kept solitary. Musk turtles can be nippy and territorial, especially males, and never mix animals of different sizes as bullying and injury are common. Cohabiting is only advisable in very large, heavily structured setups or ponds with duplicated basking and hiding spots and close monitoring. Sexing (in adults): males have a noticeably longer, thicker tail with the vent extending beyond the shell rim, and often small patches of rough scales on the inner hind legs; females have a short tail with the vent at or inside the shell edge and tend to be slightly larger. They do not need companionship and are not a bonding species.

Provide a complex, cluttered underwater environment they can explore and forage through: driftwood tangles, rock piles, caves (open enough to prevent entrapment), and dense planting to climb. Encourage natural foraging behaviour by scattering live prey such as earthworms, snails, or shrimp so the turtle has to hunt rather than being hand-fed. Vary the menu, rearrange hardscape occasionally, and use a gentle water flow to create current they can navigate. A safe, reachable basking ledge under UVB adds behavioural variety even for a species that basks intermittently.