Cyriopagopus lividus (Cobalt Blue Tarantula)

Cobalt Blue Tarantula (Cyriopagopus lividus)

Cyriopagopus lividus is one of the most popular species of all time, and the species most people think of when it comes to blue tarantulas.  Adults display that unmistakable deep cobalt blue across the legs, especially along the femurs, contrasted by a muted gray carapace (head) and abdomen.  Slings and juveniles start off with luttle color and striping on the abdomen that slowly changes into the gorgeous cobalt blue coloration typically around 2.5 to 3 inches. Native to Thailand and surrounding regions, this old world tarnatula for sale is a fossorial species that digs deep burrows, but emerges at night to hunt. 

Why Hobbyists Keep Cyriopagopus lividus

• Cobalt Blue Color: One of the original blue tarantulas in the hobby, with a rich, saturated tone that still holds up against newer species
• Strong Feeding Response: Typically a reliable eater that will ambush prey from the burrow entrance
• Fast Growth Rate: juvniles are known to have a faster growth rate, which is rewarding to keepers. 
• Burrowing Behavior: Keepers love to observe the interesting burrow designs that fossorial species make. 

Care Overview

• Enclosure: Fossorial setup, 2× leg span footprint, 3× height, with substrate depth 2–3× leg span to support deep, stable burrows
• Temperature: 65–75°F
• Humidity: Moderate to high, keep lower layers of substrate slightly damp while allowing the top to dry a bit, never swampy
• Diet: Crickets, roaches, and other feeders sized appropriately to the carapace (head)
• Temperament: Very defensive, fast, and prone to bolting, best suited for experienced keepers

Additional Notes or Considerations

This species really depends on depth. Without enough substrate, they cannot establish a proper burrow and will often stay stressed and reactive. Given the option, they will almost always choose to dig rather than use a surface hide. Expect most activity to happen out of sight, with occasional nighttime appearances near the burrow entrance. Their speed and unpredictability during maintenance is worth respecting, especially in tighter enclosures.