Care sheetBeginner

Mexican red knee tarantulaBrachypelma hamorii

The Mexican red knee is one of the most recognisable tarantulas, with bright orange leg bands. It's docile, slow-growing and long-lived, making it a classic first tarantula.

A Mexican red knee tarantula on bark, seen from above
OriginMexico
Adult legspanAround 14–16 cm (5.5–6.5 in)
LifespanFemales 15+ years; males about 10
ActivityTerrestrial, burrowing
DietInsectivore
ExperienceBeginner

Enclosure

At least 50 × 25 × 25 cm for an adult, with a hide and enough substrate to dig. One tarantula per enclosure.

Temperature

Room temperature of 21–27°C suits them. If your room is cold, use a thermostat-controlled heat mat on one side, never underneath.

Humidity & water

Keep humidity around 40–60% with a mostly dry substrate and one slightly damp area. Provide a shallow water dish and change it regularly.

Diet & feeding

Slings every 4–7 days, juveniles every 7–10 days, adults about every 14 days. Offer 1–5 insects and remove anything uneaten after 24 hours.

Moulting

Stop feeding when they go off food before a moult, remove live insects, and don't disturb them. Wait until the fangs have hardened before feeding again.

Handling

Handling isn't recommended. If you need to move one, let it walk onto your hand over a soft surface. Red knees flick irritating hairs when stressed, so wash your hands after maintenance.

Every animal is an individual. Use this sheet as a starting point, measure temperatures and UVB properly, and speak to an exotic vet about any health concerns.

Last updated October 2026. Care guidance is subject to change as husbandry research develops.