Grammostola actaeon (Black Yeti Tarantula) RARE 1-1.25"

Grammostola actaeon (Black Yeti Tarantula)

The Black Yeti, or Grammostola actaeon, is a terrestrial tarantula from Brazil and Uruguay. Spiderlings hatch out red and black, then gradually intensify as they grow, the red deepening and the black darkening into that velvety coloration accented by rich reddish hairs on the abdomen, creating a beautiful high contrast coloration similar to its cousin, Grammostola iheringi. This species only grows to about 7 inches in diagonal leg span, with the richest, deepest coloration coming in around 4 to 5 inches and fully set in by around 5 inches. Like others in the genus, this species has a very long lifespan, with females reaching about 20 to 30 years while males live 3 to 5 years. This species is also very calm and forgiving, a great pick for anyone who loves the Brazilian Black and wants something rarer, fluffier, and a little different. Grab this docile, rare new world tarantula for sale today, offered here as a spiderling.

Why do hobbyists keep Grammostola actaeon?

• Stunning Coloration: Deep, velvety black coloration accented by rich reddish hairs on the abdomen, a striking high contrast look.
• Color Change: Spiderlings hatch out red and black, then gradually intensify as they grow, with the deepest shift toward that final coloration happening around 4 to 5 inches and fully set in by around 5 inches.
• Docile Temperament: Calm and easygoing, a great pick for beginners and collectors alike.
• Large Size: Reaches about 7 inches at full leg span, a solid presence in any terrestrial setup.
• Great Beginner Species: This genus has an unusually high success rate with keepers starting from a spiderling, forgiving enough that the small mistakes every new keeper makes rarely cost the animal, so starting small here is a straightforward way in.
• Rare in the Hobby: Genuinely hard to come by, a great pickup for anyone who loves the Brazilian Black and wants something rarer and a little different.

How should Grammostola actaeon be kept?

• Adult Size: Hatches at around 0.5 to 0.75 inch and reaches about 7 inches at full leg span, one of the larger Grammostola species in the hobby.
• Enclosure: Provide roughly 3 to 4 times the leg span as footprint and 2 times the leg span as height, with substrate at least as deep as the leg span. For this size, that means starting around 3.75 to 5 by 3.75 to 5 by 2.5 inches, with substrate around 1.25 inches deep, sizing up as it grows.
• Rehousing: Expect two more moves on the way to full size, each new enclosure lasting roughly 18 to 24 months at this species' slow growth rate.
• Temperature: Keep between 65 to 75 degrees F.
• Humidity: Maintain a moisture gradient with a slightly damp lower layer and a drier surface, similar to a morning dew cycle in the wild. Good ventilation is critical.
• Water: A shallow textured water dish works well, something they can grip when climbing out.
• Diet: Feed crickets or roaches around 5/16 inch, matched to the carapace (head). Feed at least once a week.
• Temperament: Calm and easygoing, a great pick for anyone who wants a docile, low-key display animal without giving up rarity.

Are there any additional notes or considerations?

• Also Known As: Sold in the past under the names Wooly Brazilian Black and Brazilian Red Rump, same species, now going by Black Yeti to better reflect how different and rare it is compared to the true Brazilian Black.
• Captive Bred: All tarantulas at Exotics Unlimited are captive bred.

Frequently asked questions about Grammostola actaeon

• Is this spiderling already past the delicate early stage? It is a well-started spiderling, just past the size the species hatches at, so it has already cleared the trickiest early feeding and molting stretch.
• Will the coloration look different from a smaller spiderling? The red and black are visible at this size too. The richest, deepest version of that coloration is still ahead, developing most noticeably between 4 and 5 inches.

Looking for similar species?

• Browse our New World Tarantulas and Terrestrial Tarantulas collections to explore related care profiles and species groupings.

Listing Notes

• This listing is for a Grammostola actaeon Black Yeti Tarantula spiderling measuring around 1 to 1.25 inches in diagonal leg span, which is the size given in the title, unsexed, with roughly a 50/50 chance of male or female. This is a well-started spiderling, already past the size the species hatches at. The red and black are already visible at this size, and the richest, deepest shade of that coloration is still ahead, developing most noticeably between 4 and 5 inches.
• Looking for other sizes? This species is also available as 0.75-1" Spiderling or About 2.5" Juvenile.