Mexican Red Knee

Brachypelma hamorii

Typical adult female Chilean Rose Tarantula (Grammostola porteri) shown feeding on a locust

The Mexican Red Knee (Brachypelma hamorii) is one of the most commonly kept and desirable species in the hobby, with a bold body form and attractive colouration. It is a pretty typical species from this sort of area, being from the new world meaning it possess a mild venom and urticating hairs on the abdomen, and reaches around 6 inches in leg-span. This is another generally mild mannered species, but again this site does not recommend handling, although this makes them ideally suited for beginners and advanced keepers alike when combined with their ease of care.

This species was previously known as Brachypelma smithi, but recent research suggests that the spiders kept in the hobby are more likely to be Brachypelma hamorii. The care of this species is like that of other commonly kept, terrestrial species, with the tank design for this genus generally being interchangeable.

Basic Care

Tank design for a typical new world, terrestrial tarantula

The tank should ideally be around two to three times the length of the diameter of the spider’s leg-span, and should be well ventilated. This species does not generally require supplemental heating, and doesn’t require spraying. Tank furnishings should ideally include one to two inches of suitable substrate and a hide. This genus tends to feed well unless a moult is coming up, and food should generally be offered once every week or two, in the form of a suitably sized locust or other similar insects.


  1. Schultz, S.A. & Schultz, M.J.(2009) Tarantula Keeper's Guide, 2nd Edition. Barrons Educational Series, USA.