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Grammostola actaeon - Brazilian Woolly Tarantula


Grammostola actaeon - Brazilian Woolly Tarantula

Introducing the Grammostola actaeon, or the Brazilian Woolly Tarantula, a truly magnificent species that combines a gentle temperament with a visually appealing, fluffy appearance. This species, with its calm nature and striking looks, is perfect for both novice and experienced tarantula enthusiasts who seek a less intimidating, yet engaging pet spider.

Care Details

  • Temperature: Ideal range for most tarantulas is 75 to 85°F (24 to 29°C). Tarantulas in warmer environments eat more, grow faster, and molt quicker.
  • Humidity: The Grammostola actaeon requires a humidity level of about 60-70%. Water dishes are not necessary, but if used, they pose no harm. I personally do not use them.
  • Housing: As a terrestrial species, babies can be housed in 1 oz to 4 oz deli containers with needle-made ventilation. For larger individuals, an enclosure roughly 2 to 3 times their size provides ample space. Remember, a free deli container or small enclosure for babies is available at checkout, but you must specify this during your purchase.


I personally provide a variety of crickets and cockroaches, including Dubia, Red-runner, Lobster, and Madagascar hissing roaches. For the baby tarantulas, baby crickets and baby roaches are ideal. If a small enough cricket or cockroach is unavailable, just crush its head and leave it in the enclosure; your tarantula should handle the rest. Remember to remove any uneaten food to prevent mold growth. Offering an occasional treat, such as a pinky or hopper mouse, adds a nice variety to their diet, though these should be given sparingly.

In-depth Facts

  • Latin name: Grammostola actaeon
  • Common name: Brazilian Woolly Tarantula
  • Locale: Found primarily in Brazil
  • Category: Terrestrial, minimal webbing
  • Size: Females can reach up to 6-7 inches in leg span, with males being slightly smaller.
  • Urticating hairs: They possess urticating hairs, but rarely if ever use it as a defense mechanism.
  • Growth rate: Slow to moderate
  • Life span: Females can live up to 25 years, while males generally live around 4-5 years.
  • Recommended levels: Ideal for beginners due to their docile nature.

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Safety Disclaimer:

Experiencing a tarantula bite is an extremely rare occurrence, and it's important to note that there have been no recorded fatalities due to a tarantula bite. The venom potency varies across species, with Old World tarantulas generally having stronger venom than their New World counterparts. Within the Old World category, the Poecilotheria genus is known for having particularly potent venom.

It's crucial to approach tarantulas with respect and understanding. If you happen to get bitten, which is unlikely, the key is to stay calm. In most cases, the discomfort is superficial and subsides within a few minutes to a few hours. However, bites from species with more potent venom may result in symptoms lasting up to a week. Remember, larger tarantulas tend to have more venom than smaller ones.

Please be aware that I cannot assume responsibility for bites. Tarantula handling should be done at your own risk. In my 11 years of experience with these creatures, I have only been bitten once, by a species with highly potent venom. While the experience was painful, the symptoms had completely disappeared after a week.

Handle tarantulas responsibly, and always prioritize your safety and the well-being of the tarantula.